Anyone happen to have a source to a photo of the NeXT CDROM drive? Google's
being spectacularly unhelpful (one of those times where it'd be really handy
to be able to do a case-sensitive search :)
I'm interested to know whether the case styling was done in-house (and so is
in keeping with the rest of the product line) or whether it was just an
off-the-shelf unit.
cheers
Jules
HP 98625A Print set and parts list is on Bitsavers.
----- Original Message -----
From: <cctech-request at classiccmp.org>
To: <cctech at classiccmp.org>
Sent: Wednesday, February 21, 2007 10:02 AM
Subject: cctech Digest, Vol 42, Issue 53
> Send cctech mailing list submissions to
> cctech at classiccmp.org
>
> To subscribe or unsubscribe via the World Wide Web, visit
> http://www.classiccmp.org/mailman/listinfo/cctech
> or, via email, send a message with subject or body 'help' to
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>
> When replying, please edit your Subject line so it is more specific
> than "Re: Contents of cctech digest..."
>
>
> Today's Topics:
>
> 1. Pair of 19" rack mount Emulex HD's available....
> (Curt - Atari Museum)
> 2. VCF East 4.0, another update... (Evan Koblentz)
> 3. Re: New DEC museum entry :D (Jules Richardson)
> 4. Re: HPIB [was Re: Kennedy to PC interface...] (der Mouse)
> 5. Looking For DEC TTY Connectors (O. Sharp)
> 6. Re: NeXT external CDROM drive (Gavin Thomas Nicol)
> 7. Re: Pair of 19" rack mount Emulex HD's available....
> (William Donzelli)
> 8. Re: Turbodos on a Horizon 8/16 system (Jim Battle)
> 9. Re: HPIB [was Re: Kennedy to PC interface...] (Chuck Guzis)
> 10. Re: New DEC museum entry :D (Bob Bradlee)
> 11. Re: NeXT external CDROM drive (r.stricklin)
> 12. Re: Turbodos on a Horizon 8/16 system (Chuck Guzis)
> 13. Re: Looking For DEC TTY Connectors (Brent Hilpert)
> 14. Re: database of PC software release dates? (Jim Leonard)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 20 Feb 2007 20:42:16 -0500
> From: Curt - Atari Museum <curt at atarimuseum.com>
> Subject: Pair of 19" rack mount Emulex HD's available....
> To: General Discussion: On-Topic and Off-Topic Posts
> <cctalk at classiccmp.org>
> Message-ID: <45DBA378.6000807 at atarimuseum.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> I'm cleaning out one of my storage units, I was given a pair of 19" Rack
> mountable Emulex HD's (SMD) when I purchased some Vax equipment. If
> anyone in the area (Carmel, NY 10512) wants them, they are yours for
> free, just come and pick them up.
>
>
>
> Curt
>
>
>
>
>
> ------------------------------
>
> Message: 2
> Date: Tue, 20 Feb 2007 21:11:57 -0500
> From: "Evan Koblentz" <evan at snarc.net>
> Subject: VCF East 4.0, another update...
> To: "'General Discussion: On-Topic and Off-Topic Posts'"
> <cctalk at classiccmp.org>
> Message-ID: <001d01c7555d$aa2aa730$6401a8c0 at DESKTOP>
> Content-Type: text/plain; charset="us-ascii"
>
> Hi all,
>
> I'm getting an early start on signing up VCF East exhibitors / vendors /
> speakers. If you're interested and not already on our local (MARCH) list,
> then please contact me off-list.
>
> - Evan
>
> -----------------------------
>
> Prior update: In addition to Chuck Peddle, our panel (in the morning of
June
> 9) will feature Bil Herd, Bob Russell, and Dave Haynie .... Along with
> several of the early models (and even some ultra-rare prototypes) on
display
> .... In case the panelists have a sudden urge to demo anything. ALSO:
there
> WILL be a second day! The official dates are now June 9-10.
>
> Location: InfoAge Science Center (www.infoage.org), Wall, N.J. ....
> Sponsored once again by MARCH (www.midatlanticretro.org).
>
>
>
> ------------------------------
>
> Message: 3
> Date: Tue, 20 Feb 2007 21:25:08 -0600
> From: Jules Richardson <julesrichardsonuk at yahoo.co.uk>
> Subject: Re: New DEC museum entry :D
> To: General Discussion: On-Topic and Off-Topic Posts
> <cctalk at classiccmp.org>
> Message-ID: <45DBBB94.1040205 at yahoo.co.uk>
> Content-Type: text/plain; charset=ISO-8859-15; format=flowed
>
> Tony Duell wrote:
> > My first thougth is that it is a mains filter capacitor that's breaking
> > down. Some of them are designed to be 'self healing' in that if the
> > dielectric breaks down, the current will then vapourise the metal in
that
> > area, causing the capacitor to carry on working. Of course that was
> > before the days of those over-sensitive RCDs, etc.
>
> This is where we find there's a temperature-controlled fan or somesuch in
the
> machine which kicks in after a few minutes and for some reason causes the
PSU
> to throw a wobbly...
>
> Agreed - weird problem.
>
> Out of interest, if you power the machine up and then immediately power it
> down normally (before it's had the chance to do so itself :) does it still
> upset the house mains? Just asking as maybe that's something you haven't
tried
> yet...
>
>
>
>
> ------------------------------
>
> Message: 4
> Date: Tue, 20 Feb 2007 22:15:39 -0500 (EST)
> From: der Mouse <mouse at Rodents.Montreal.QC.CA>
> Subject: Re: HPIB [was Re: Kennedy to PC interface...]
> To: "General Discussion: On-Topic and Off-Topic Posts"
> <cctalk at classiccmp.org>
> Message-ID: <200702210331.WAA14994 at Sparkle.Rodents.Montreal.QC.CA>
> Content-Type: text/plain; charset="iso-8859-1"
>
> >> Is there anyone here who knows enough about typical HPIB hardware of
> >> the hp300 era to be able to take a list of chip markings and tell me
> >> which one is probably the relevant driver?
> > What I would do is trace back from the data pins of the HPIB
> > connector (IIRC that's pins 1-4 and 13-16 of the 24 pin Microribbon
> > connector). On most modern-ish machines (anything since the 9830
> > :-)), there is only one chip connected to those lines, and that's the
> > HPIN data buffer.
>
> Then I guess this isn't modern-ish. :-) The suspect hardware is a
> 98625A; what tracing I've managed to do seems to lead back to four
> 16-pin DIPs labeled with an HP code (1820-2058, to be specific).
>
> > One common type is the 75160, which comes in a 20 pin DIL package, or
> > I guess some kind of SMD thing.
>
> This hardware is entirely through-hole DIP. Not a suface-mount part in
> sight. Fairly low-density through-hole DIP, too - on a board measuring
> 17x14 cm, there are only 31 chips: one of 48 pins, three of 20 pins,
> fourteen of 16 pins, and and thirteen of 14 pins (well, thirteen 14-pin
> DIP packages; I think two are resistor packs rather than logic), plus
> two ten-pin SIP resistor packs, a two-switch DIP switch bank, a
> five-switch DIP switch bank, a small pot, four discrete resistors,
> seventeen discrete capacitors, and a crystal oscillator. Oh, and
> card-edge fingers on one side and a back panel with an HPIB connector
> on the other.
>
> /~\ The ASCII der Mouse
> \ / Ribbon Campaign
> X Against HTML mouse at rodents.montreal.qc.ca
> / \ Email! 7D C8 61 52 5D E7 2D 39 4E F1 31 3E E8 B3 27 4B
>
>
> ------------------------------
>
> Message: 5
> Date: Tue, 20 Feb 2007 20:17:11 -0800 (PST)
> From: "O. Sharp" <ohh at drizzle.com>
> Subject: Looking For DEC TTY Connectors
> To: cctech at classiccmp.org
> Message-ID:
> <Pine.LNX.4.44.0702202002400.4205-100000 at cascadia.drizzle.com>
> Content-Type: TEXT/PLAIN; charset=US-ASCII
>
>
> Hey, all:
>
> I'm looking for two pair of the sort-of-Molex-like connectors DEC used for
> connecting Teletypes to minis in the late '60s/early '70s. A DEC drawing
> designates them as "Mate-n-Lock" connectors, T04915; my web search for
> them turned up a lot of connectors, but not this type. Here's a photo of
> a set, if it helps:
>
> http://flyingmoose.org/tty_conn.jpg
>
> Are these still manufactured? Does anyone have two sets in spares, or
> otherwise know where I can find a couple?
>
> Thanks in advance for any help!
>
> -O.-
>
>
>
> ------------------------------
>
> Message: 6
> Date: Tue, 20 Feb 2007 23:55:13 -0500
> From: Gavin Thomas Nicol <gtn at mind-to-mind.com>
> Subject: Re: NeXT external CDROM drive
> To: "General Discussion: On-Topic Posts Only" <cctech at classiccmp.org>
> Message-ID: <A58D76CB-D823-4D72-B536-BA31865D6DAA at mind-to-mind.com>
> Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed
>
>
> On Feb 20, 2007, at 9:53 AM, Jules Richardson wrote:
>
> > I'm interested to know whether the case styling was done in-house
> > (and so is in keeping with the rest of the product line) or whether
> > it was just an off-the-shelf unit.
>
> It's essentially a badge-engineered Apple external CD. I have a few
> of both... mostly because the Apple parts are 100% the same so I use
> them to repair the NeXT drives. I can dig up the appropriate model
> numbers if you want.
>
>
>
> ------------------------------
>
> Message: 7
> Date: Wed, 21 Feb 2007 00:07:30 -0500
> From: "William Donzelli" <wdonzelli at gmail.com>
> Subject: Re: Pair of 19" rack mount Emulex HD's available....
> To: "General Discussion: On-Topic and Off-Topic Posts"
> <cctalk at classiccmp.org>
> Message-ID:
> <e1d20d630702202107w1cf12a39jfe3834af92963ae6 at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> > I'm cleaning out one of my storage units, I was given a pair of 19" Rack
> > mountable Emulex HD's (SMD) when I purchased some Vax equipment. If
> > anyone in the area (Carmel, NY 10512) wants them, they are yours for
> > free, just come and pick them up.
>
> I need these like a hole in the head - but if available...
>
> --
> Will
>
>
> ------------------------------
>
> Message: 8
> Date: Tue, 20 Feb 2007 23:23:59 -0600
> From: Jim Battle <frustum at pacbell.net>
> Subject: Re: Turbodos on a Horizon 8/16 system
> To: General Discussion: On-Topic and Off-Topic Posts
> <cctalk at classiccmp.org>
> Message-ID: <45DBD76F.4040409 at pacbell.net>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Continuing my story of trying to recover the contents of the hard drive
> in my Horizon 8/16 system, I took Dave Dunfield's advice and wrote a
> small program to read each sector from the hard drive and dump it. 30
> MB of disk data at 9600 baud, printed as ASCII hex. It took a while.
>
> The mystery remains -- what is it?
>
> There is no plain-text to be found anywhere ... not even accidental
> sequences. I thought that perhaps it is a lot of binary data. Some of
> it must be code. Searching the hex for "CD0500" (which is "CALL 0005",
> the CP/M call vector) has no hits.
>
> I know the disk is good because I can write a sector and read back what
> I wrote. The non-destructive drive tests (basically read each sector
> and see if any errors crop up) pass.
>
> Even stripping the msb produces blocks of data that look like the
> following text. "." represents unprintable characters.
>
> ........."E..(P @.....'N.:tiS'N.
> 9rdI.&M.6mZ4hQ"D..#G..:tiS'O.<xp
> aB... A....,Y3gO.>}ztiS&M.7n]:ti
> R$I.%J.)R%K.,Y2eJ.)R$H.#F..4hP @
> .....1bD..$I.&L.0aC...9reJ.(Q#F.
> .7n\8p`@.....-[7o_>|ysfM.7n\8qcG
> ..<xqbE..(P!B...&M.4hQ#G..?~}{w
> o^={vmZ5jT(Q"D..%K./^<xpaB...%J.
> (P!C...;vlX0aB...+W.]:thP!C...5k
> W/^<xqcF..5kW.];vmZ5jU+V,Y3fM.5k
> W/_>|ysfM.6lX0aC...<yreJ.)S&M.4i
> S&M.4hP!C...7n];vlY3fL.2dI.$I.$I
> .%J.+V,X1cF..1bE..*T(P @........
> ..9sgO.={wn];wo^=zthP @.......>}
> {vmZ4iS&L.2eJ.*U*T(P A....9rdH.!
> B...%J.)S'O.?~}ztiS'O.>|xqbE..(P
>
> This is a typical block, one of almost 60K.
>
> You prefer hex? OK, here is another block:
>
> ; TRACK #031A, SECTOR #000C
> 010202060405000102F4E8D0A1428408102143870E1C3972E5CB962D5BB66DDB
> B76EDDBA75EAD5AA55AA54A952A54B972F5FBE7CF9F2E4C8902040800103060D
> 1B376FDFBF7FFEFCF8F1E2C58A142953A64C983162C488102143860C183162C4
> 88102143870F1E3D7BF6ECD9B265CB972E5CB972E5CB962D5BB76EDCB972E5CB
> 972E5DBA74E8D1A2448912254B972E5CB972E4C8902143870E1C3972E5CB962D
> 5AB56BD6AC58B061C2850B172E5CB871E2C58B172F5FBE7CF9F2E4C89123468C
> 193366CD9A356AD5AB57AF5FBE7DFAF5EAD4A953A64C983163C78E1D3A75EAD4
> A953A74F9E3D7AF4E9D2A54B972E5CB972E5CB972F5FBF7EFDFBF7EEDCB973E6
> CD9A356AD4A851A2458B172E5CB972E5CA942851A2448913274E9D3A74E9D3A7
> 4E9D3B76EDDAB56BD7AE5CB973E6CD9B366CD8B163C78E1D3A74E9D3A74E9C38
> 70E1C3860D1B376EDDBA74E8D0A143870F1F3F7EFDFAF4E9D3A74F9F3E7DFBF6
> ECD8B163C68D1A356AD5AB57AE5CB871E2C58A142953A64C993264C89123478F
> 1E3C79F3E7CF9E3D7BF7EFDFBE7DFBF6ECD9B265CA942851A3478F1E3D7BF6ED
> DBB66DDAB469D2A4499224489122448913264D9B376FDEBD7AF4E8D0A0408001
> 020408102040800103060C183162C4881122458A152A55AA54A850A142840912
> 2448902143860D1B376EDCB973E6CD9B376FDFBF7EFDFAF5EAD4A850A0418205
>
> I suppose it might be 8086 binary, as turbodos supported both Z80 and
> 8086 CPUs in the system, even mixed, but then again, my machine only has
> Z80s, no 8086s.
>
> Unless a genius comes along and recognizes this, I'm going to wipe the
> drive, install TurboDOS, and not look back.
>
> Finally, I have to give kudos to Dave Dunfield for his great NST
> utilities and his floppy disk archive. It allowed me to mint some new
> NSDOS and CP/M images for the machine after my only CP/M boot disk got
> trashed.
>
> http://www.classiccmp.org/dunfield/img/
>
>
>
> ------------------------------
>
> Message: 9
> Date: Tue, 20 Feb 2007 21:47:56 -0800
> From: "Chuck Guzis" <cclist at sydex.com>
> Subject: Re: HPIB [was Re: Kennedy to PC interface...]
> To: "General Discussion: On-Topic and Off-Topic Posts"
> <cctalk at classiccmp.org>
> Message-ID: <45DB6C8C.26193.21EE3100 at cclist.sydex.com>
> Content-Type: text/plain; charset=US-ASCII
>
> On 21 Feb 2007 at 2:25, Tony Duell wrote:
>
> > There aren't that many HPIB buffer chips in common use. There's the TI
> > set (75160/75161/75162), the HP custom one, the various Motorola ones (I
> > forget the numbers), the Intel one (8293), and that's about it. Oh,
> > there's the kludge way, using open-collector TTL as drivers (or before
> > that, discrete transistors), and 7414's as receivers.
>
> If you're communicating to a single device, it's possible to use a PC
> paralell port (particularly a bidirectional one) to do the job. A
> very long time ago, I needed to draw a color pie chart. I had a copy
> of Supercalc and a friend loaned me an HP 5-pen (IIRC) plotter that
> he'd picked up at the going-out-of-business sale of the Control Data
> retail stores. I had a PC XT at the time. The problem was that the
> plotter was GPIB only.
>
> I hacked the parallel port on the IBM MDA to do bidirectional I/O
> (easy--just a cut and a jumper). I wrote a TSR that hooked the
> parallel port BIOS interrupt and translated the codes intended for a
> parallel-interface plotter to GPIB strings. I told Supercalc that it
> was driving the parallel-port version of the plotter and bingo--I had
> my charts.
>
> You can probably still find the code in one of the SIMTEL archives,
> but I can't remember what I called it--something like LPTHPIB, IIRC.
>
> Cheers,
> Chuck
>
>
>
> ------------------------------
>
> Message: 10
> Date: Wed, 21 Feb 2007 01:11:02 -0500
> From: "Bob Bradlee" <caveguy at sbcglobal.net>
> Subject: Re: New DEC museum entry :D
> To: "General Discussion: On-Topic and Off-Topic Posts"
> <cctalk at classiccmp.org>
> Message-ID: <200702210611.l1L6B9w2044544 at keith.ezwind.net>
> Content-Type: text/plain; charset="us-ascii"
>
> On Tue, 20 Feb 2007 22:47:05 +0000, Adrian Graham wrote:
>
> >On 20/2/07 21:48, "Tony Duell" <ard at p850ug1.demon.co.uk> wrote:
>
> >> THat's an odd fault. It's repeatable, yes? In other words you turn it
on,
> >> it runs for 5 minutes, then trips the mains. You cna then power it
down,
> >> power it up again and it'll run for another 5 minutes...
>
> >Yep. Every time. I haven't timed it exactly, but it will run for minutes
> >then give up; last night I had enough time to start playing with DCL and
> >leave it for a bit while I dug a manual out. Then everything went black
:)
> >
>
> I had a problem like that, where I had a rack that was drawing close to
the limit on a 20 amp breaker,
> when I added the last system to the stack the problem began, after a few
minutes of runtime the breaker
> would heat up and pop, I swaped the breaker out with a different one of
the same size and it that held just
> fine. The circuit I moved the week breaker to, normally only runs 7 or 8
amps and it never failed with the
> light load.
>
> I had a second breaker problem. After an extended power failure, I found
that the circuit would not carry
> both the normal startup load with the additional of 2 large UPS's at full
charge rate on near dead batteries
> during startup. Just about the time everything booted and came back up,
the breaker would have heated
> up and poped. I pulled the external battery packs off, and let them charge
the internal batteries first and
> then added one external pack at a time, untill I could get a larger
circuit run to the rack.
>
> While you are at it, you might want to take a clamp on amp meter and
balance the load between phases.
> You may be pulling more power on one phase. If you pull the voltage down
on one side or phase with an
> unballanced load, the current load will go up and breakers will be more
likely to overheat and pop.
>
> I was in a 3 phase box just yesterday that was running 17a, 23a, and 37a
on each of the 3 phases.
> The electric company bills based on the max load on any single phase, by
moving about 10a of load from
> phase 3 to phase 1, we dropped the billable load the electric company sees
>from 37a to 27a, close to a
> third. That should look good on next months electric bill.
>
> Just a thought, back under my rock ....
> The other Bob
>
>
>
>
>
>
> ------------------------------
>
> Message: 11
> Date: Tue, 20 Feb 2007 22:28:37 -0800
> From: "r.stricklin" <bear at typewritten.org>
> Subject: Re: NeXT external CDROM drive
> To: "General Discussion: On-Topic Posts Only" <cctech at classiccmp.org>
> Message-ID: <2877027B-F289-42E9-A222-3E9BD7889ACC at typewritten.org>
> Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed
>
>
> On Feb 20, 2007, at 6:53 AM, Jules Richardson wrote:
>
> > I'm interested to know whether the case styling was done in-house
> > (and so is in keeping with the rest of the product line) or whether
> > it was just an off-the-shelf unit.
>
> It's physically identical to the caddy-load 2x Sony OEM unit that
> made the rounds as (for example) the Apple CD300 and DEC RRD42,
> except for the black casing, black plastics, and NeXT logo pasted up
> front.
>
> ok
> bear
>
>
> ------------------------------
>
> Message: 12
> Date: Tue, 20 Feb 2007 22:32:48 -0800
> From: "Chuck Guzis" <cclist at sydex.com>
> Subject: Re: Turbodos on a Horizon 8/16 system
> To: "General Discussion: On-Topic and Off-Topic Posts"
> <cctalk at classiccmp.org>
> Message-ID: <45DB7710.24809.22174537 at cclist.sydex.com>
> Content-Type: text/plain; charset=US-ASCII
>
> On 20 Feb 2007 at 23:23, Jim Battle wrote:
>
> > 010202060405000102F4E8D0A1428408102143870E1C3972E5CB962D5BB66DDB
> > B76EDDBA75EAD5AA55AA54A952A54B972F5FBE7CF9F2E4C8902040800103060D
> > 1B376FDFBF7FFEFCF8F1E2C58A142953A64C983162C488102143860C183162C4
> > 88102143870F1E3D7BF6ECD9B265CB972E5CB972E5CB962D5BB76EDCB972E5CB
> > 972E5DBA74E8D1A2448912254B972E5CB972E4C8902143870E1C3972E5CB962D
> > 5AB56BD6AC58B061C2850B172E5CB871E2C58B172F5FBE7CF9F2E4C89123468C
> > 193366CD9A356AD5AB57AF5FBE7DFAF5EAD4A953A64C983163C78E1D3A75EAD4
> > A953A74F9E3D7AF4E9D2A54B972E5CB972E5CB972F5FBF7EFDFBF7EEDCB973E6
> > CD9A356AD4A851A2458B172E5CB972E5CA942851A2448913274E9D3A74E9D3A7
> ...
>
> My guess is that this might well be a test pattern. One obvious clue
> is that there are too many '1' bits for code--either 8086 or
> 8080/Z80.Even complementing the data doesn't produce anything more
> useful.
>
> Cheers,
> Chuck
>
>
>
> ------------------------------
>
> Message: 13
> Date: Tue, 20 Feb 2007 22:40:54 -0800
> From: Brent Hilpert <hilpert at cs.ubc.ca>
> Subject: Re: Looking For DEC TTY Connectors
> To: General at priv-edmwaa06.telusplanet.net,
> "Discussion at priv-edmwaa06.telusplanet.net":On-Topic and Off-Topic
> Posts <cctalk at classiccmp.org>
> Message-ID: <45DBE967.6E5C5DF4 at cs.ubc.ca>
> Content-Type: text/plain; charset=us-ascii
>
> "O. Sharp" wrote:
> > I'm looking for two pair of the sort-of-Molex-like connectors DEC used
for
> > connecting Teletypes to minis in the late '60s/early '70s. A DEC drawing
> > designates them as "Mate-n-Lock" connectors, T04915; my web search for
> > them turned up a lot of connectors, but not this type. Here's a photo of
> > a set, if it helps:
> >
> > http://flyingmoose.org/tty_conn.jpg
> >
> > Are these still manufactured? Does anyone have two sets in spares, or
> > otherwise know where I can find a couple?
>
> I have half of what you are looking for: about 2-dozen cables, each cable
> being 4-conductor with a connector on one end. The connectors are those
with
> the big flat tab, shown on the left in your photo. The pins in use are the
> same as in your photo (2,3,5 & 7, depending on which end you count from),
so
> presumably these were used for the same purpose.
>
> It's just surplus cable to me, so if it's of any help without the other
> connector, let me know. Location is Vancouver, Canada.
>
>
> ------------------------------
>
> Message: 14
> Date: Wed, 21 Feb 2007 01:10:27 -0600
> From: Jim Leonard <trixter at oldskool.org>
> Subject: Re: database of PC software release dates?
> To: General Discussion: On-Topic and Off-Topic Posts
> <cctalk at classiccmp.org>
> Message-ID: <45DBF063.3000702 at oldskool.org>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Richard wrote:
> > Is there a database somewhere that attempts to catalog the
> > introduction date of software for the IBM PC and compatibles?
>
> www.mobygames.com, but that's only for entertainment software.
> --
> Jim Leonard (trixter at oldskool.org) http://www.oldskool.org/
> Help our electronic games project: http://www.mobygames.com/
> Or check out some trippy MindCandy at http://www.mindcandydvd.com/
> A child borne of the home computer wars: http://trixter.wordpress.com/
>
>
> End of cctech Digest, Vol 42, Issue 53
> **************************************
>
Jim Battle wrote:
> Lee Davison wrote:
>>> Unless a genius comes along and recognizes this, I'm going to wipe
>>> the drive, install TurboDOS, and not look back.
>>
>> Is there any place potential geniuses can get all this image data?
>>
>> Lee.
>
> Lee,
>
> The 30 MB drive is partitioned into two logical drives under turbodos. I
> gave up about 1/4 the way through the B partition. A looks
> indistinguishable from this, other than being 4x larger since it is the
> full partition.
>
Dang, I can't believe I fell for that again. Sorry jay for sending a
large attachment. Lee, I'll try again, this time to you.
Has anyone started to rebuild the boot disk/software archives similar to what
Don Maslin was doing? I see bits and pieces spread around the web but nothing
all inclusive such as what Don had. It would be great to see it all in one place
and mirrored in the same way as bitsavers.
I did find a list of the disks that Don had online (I think at Gaby). To the
best of my knowledge, that was the only online compilation of what was contained
in his collection.
> From: "Chuck Guzis" <cclist at sydex.com>
> I can remember seeing at least one project for a crystal-controlled
> timing source using tubes (I think it used push-pull 6F6's in the
> output stage) to run an ordinary synchronous-motor wall clock. This
> would probably be during the 1940s or 50s.
>
> Does anyone remember that the oldest of said wall clocks required the
> owner to start the motor manually by spinning a little knurled shaft
> located on the back?
I seem to recall a rumor where the power companies were offering to replace at
no charge those clocks that needed to be mamually started (before my time.) The
reason had something to do with using power that didn't register on the power
meter. Anyone here know if this is fact or fiction?
> Unless a genius comes along and recognizes this, I'm going to wipe
> the drive, install TurboDOS, and not look back.
Is there any place potential geniuses can get all this image data?
Lee.
Hey, all:
I'm looking for two pair of the sort-of-Molex-like connectors DEC used for
connecting Teletypes to minis in the late '60s/early '70s. A DEC drawing
designates them as "Mate-n-Lock" connectors, T04915; my web search for
them turned up a lot of connectors, but not this type. Here's a photo of
a set, if it helps:
http://flyingmoose.org/tty_conn.jpg
Are these still manufactured? Does anyone have two sets in spares, or
otherwise know where I can find a couple?
Thanks in advance for any help!
-O.-
--- Chuck Guzis <cclist at sydex.com> wrote:
**>> snip <<**
> A good mechanical watch will just keep going and
> going with an
> occasional clean and lube.
>
> I read somewhere that watches themselves are on th
e
> decline.
> Apparently many folks simply use their mobile phon
e
> as a time source.
You took the words right out of my mouth.
Since I got my 1st mobile around 2001 I haven't
used watches at all.
Before 2001 I never really used watches that
much anyway. I never needed them at school
and didn't go out much during my teen years.
Infact, apart from one my grandparents had
(with day of the month on it), I never used
watches until I left secondary school (summer
1996) and had to go out looking for work etc.
(I didn't want to do further education - sixth
form, college and Uni etc.)
>
> Didn't Mozart grumble about being paid with pocket
> watches instead of
> money?
>
> Cheers,
> Chuck
>
But surely the watches would have been worth
more than money, to the right person of course?
Regards,
Andrew D. Burton
aliensrcooluk at yahoo.co.uk
Hi all,
I'm getting an early start on signing up VCF East exhibitors / vendors /
speakers. If you're interested and not already on our local (MARCH) list,
then please contact me off-list.
- Evan
-----------------------------
Prior update: In addition to Chuck Peddle, our panel (in the morning of June
9) will feature Bil Herd, Bob Russell, and Dave Haynie .... Along with
several of the early models (and even some ultra-rare prototypes) on display
.... In case the panelists have a sudden urge to demo anything. ALSO: there
WILL be a second day! The official dates are now June 9-10.
Location: InfoAge Science Center (www.infoage.org), Wall, N.J. ....
Sponsored once again by MARCH (www.midatlanticretro.org).
Previously on this channel......
>>>>>
On Sun, 18 Feb 2007, David Griffith wrote:
> On Sun, 18 Feb 2007, Golan Klinger wrote:
>
> > David Griffith wrote:
> >
> > > I have a fondness for the Wyse 85 and I was wondering if anyone
here has
> > > one in decent condition to get rid of.
> >
> > I share your fondness for that particular terminal. I'm not sure
what
> > it is about the Wyse 85 but I just love them. My last one died a few
> > years ago and my Wyse 60 just isn't up to snuff. Considering how
many
> > were made/sold, it's odd that they're so hard to find.
>
> I find the Wyse 50 on Ebay all the time, frequently newly refurbished.
> Do you still have the dead 85? Since the 50 is externally identical
to
> the 85, do you think it would be possible to turn a 50 into an 85 with
> some rom swapping?
Whoops. They're not identical. I've unearthed a Wyse 99gt with bad
screenburn and nasty case discoloration. Seems close enough for my
purposes.
<<<<<
Yes, Wyse made some terminals that WERE the same, just different PROMS.
The Wyse-75
and Wyse-50 were the SAME hardware. You can convert a Wyse 50 (weird
escape sequences)
to a Wyse-75 (nice VT-100 type escape sequences) with a bit of work.
I've done it
very successfully (it was a few years ago, in a previous life).
Steps:
1) Have a Wyse 75 nearby that can be "borrowed". You will return it in
its original
condition.
2) Have the Wyse 50 (soon to be a Wyse 75) around as well.
3) Get a couple of EPROMS that are the same as the ones inside the Wyse
50/75. At the
moment I don't remember, but a pair of 2764's sounds familiar.
4) Open up the Wy-75's logic board and get access to the nice socketed
prom chips.
5) Mark the chips and their sockets to make sure you don't fudge them
in the wrong
place.
6) Make copies of these chips in your EPROMS. Be aware that if you
don't have high
enough speed chips, the unit you are "modding" might NOT work in 132
column mode.
7) Place these chips in the Wy-50's board where they came from the
WY-75.
8) (Here it gets a bit tricky!) Remove the EEPROM (it is a 16 pin chip
and socketed)
from the Wy-75 and put it in the Wy-50's socket. Save the Wy-50's
EEPROM for a
step further down.
9) Power up the Wy-50 (now a Wy-75) and get into the setup menu. Note
that the keytops
are in a few different places, but since you have a Wy-75, just make
legends for
that copy the keycaps.
10) With power ON (careful now) gently remove the EEPROM chip inserted
in step 8.
11) With the power STILL on insert (careful now) the EEPROM chip from
the original WY-50
back into the socket.
12) Since you are in the setup menu, do a "save". This saves the Wy-75
stuff into the
EEPROM and makes sure that bits are set to allow the Wy-75 to work.
If you DON'T
do this, the terminal WON'T power up in a useful state AT ALL!
13) Put the original Wy-75 parts back into the "donor" wy-75 and
re-assemble it. They
won't notice ANY difference as you haven't changed anything!
14) Re-assemble the former Wy-50 (now a nice functional Wy-75) and add
some labels to
the keyboard for the keys that are different from the Wy-75 (there
are a few).
15) Be happy. You just upgraded your Wy-50 to a Wy-75. Enjoy the nice
VT-100 style
escape codes. Note that some of the "F keys" (F1-F6 as I remember)
have specific
functions and are NOT programmable.
So, there you go. Yes it is the same hardware. The Wyse 75 firmware
looks in the
EEPROM to see that you started out that way, and wedges if not. This is
the reason for
the dance shown above. I tried it without the EEPROM dance and it DID
NOT work. Then
I figured it out. I didn't have an EEPROM (2401??) programmer, so I
couldn't clone that
part, but since the above works (be very very careful), it shouldn't be
a problem.
As the saying goes: "West and Welaxation at Wast ha ha ha ha..."
(insert Elmer Fudd
voice here).
--
Tom Watson Generic Signature
t_wtom at qualcomm.com (I'm at work now)
... who might be able to pick up and hang on to some NeXT stuff for five weeks
or so? We've got an offer of some stuff but it has to be out of the owner's
house by next Monday, and I'm not back in the UK until the end of March.
I'm hoping Witchy can collect [1] as he thinks he might be off to London later
this week sometime, but as this is all a little rushed I thought it might be
wise to line up a backup if possible :-)
[1] Witchy, did you get my last email with contact details for the guy? My
message prior to that one bounced saying that the destination computer wasn't
found (which is the second time in the last couple of weeks that's happened)
so I guess you're having mail server troubles...
cheers
Jules
--- der Mouse <mouse at rodents.montreal.qc.ca> wrote:
> >> Apparently many folks simply use their mobile
> phone as a time
> >> source.
> > Since I got my 1st mobile around 2001 I haven't
> used watches at all.
>
> Heh.
>
> My watch died recently, and since then I have been
> using my phone as my
> mobile time source. I want the watch back. (Too
> bad it's broken; I
> need to find another.)
>
> Why?
>
> The phone is significantly harder to get to (have
to
> extract it from a
> pocket, versus just turning my wrist), and the pho
ne
> is significantly
> harder to read under most circumstances.
>
My first mobile yes, but not my current one
which has a much better LCD display and
backlighting.
Oh yes, speaking of backlighting.... it can also
double as a torch when in the dark :)
It drains the battery faster sure, but it usually
only needs charging once every 2 days
(battery should last for 1000 charges or so).
> There's also an element of "use the right tool for
> the job", but that's
> much weaker.
>
Indeed.
If I needed a stopwatch then I would need
a digital watch, or a erm... stopwatch!
> /~\ The ASCII der Mouse
> \ / Ribbon Campaign
> X Against HTML mouse at rodents.montreal.qc.
ca
> / \ Email! 7D C8 61 52 5D E7 2D 39 4E F1 31
3E
> E8 B3 27 4B
>
Regards,
Andrew D. Burton
aliensrcooluk at yahoo.co.uk
Something I just ran across was a website with a list of CPUs and the machines
that used them starting with the Intel 4004 and continuing up through the
8086/8088.
http://www.cpushack.net/antique-computers.html
As they themselves say, the list is far from complete, but it is pretty
interesting.
Anyone know of any Wright-Line freestanding tape racks available in
the Bay Area? (for 2400ft tapes, 30tape, 5 rack)
The Computer History Museum needs a few. Would think there should
still be some kicking around somewhere near here.
Someone wrote....
> I have some PDP11 in various states to 'dispose of' - can you help me find
> some appropriate new home(s) for them, please? They are currently 'stored'
> (ie sitting on a pallet in a dusty room) in warehouse premises - in Wigan,
> UK - which are due to be vacated later this year (but that will be after i
> have left the company, hence the need to 'clear up' before then before
> they're scrapped).
>
> There is one 11/83, two 11/73's and most of a couple of others whose types
> i 'm unsure of.
>
> I can arrange to ship these, preferably to one area in mainland UK but
> perhaps to several ...
>
> If you can help me to get in touch with anyone UK-based who can 'take them
> off my hands' i would be most grateful ...
Please contact me off-list if interested.
Jay
If anyone wants these, please contact original poster directly. I don't hear
much about IAS.
Jay
----- Original Message -----
From: "Al Fontes" <alfred at fontes.org>
To: <jwest at classiccmp.org>
Sent: Saturday, February 17, 2007 1:11 AM
Subject: PDP-11 docs
> I have the following, which are yours if you'll cover the shipping from
> San Francisco:
> RT-11 System User's Guide, 1980
> IAS/RSX-11 MACRO-11 Reference Manual, 1977
> PDP-11 Processor Handbook, 1981
>
> The front cover's starting to tear off the handbook, which is a paperback,
> but otherwise it's in decent shape The other two manuals are loose-leaf
> pages that go into a 3-ring binder. They're in good shape as well.
>
> Please let me know if you want them. I've come very close to recycling
> them a few times.
>
> --Al
Hi Curt. Do you know if this is the H960 rack? I am looking for one that has the "legs" on the front. Like the one in this photo:
http://www.groenenberg.net/pic/PDP/eb04.jpg
Do you have any photos of the cabinet? Thanks.
Todd Paisley
I have a fondness for the Wyse 85 and I was wondering if anyone here has
one in decent condition to get rid of.
--
David Griffith
dgriffi at cs.csubak.edu
A: Because it fouls the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?
>From: "Glen Slick" <glen.slick at gmail.com>
>
>On 2/19/07, aliensrcooluk at yahoo.co.uk <aliensrcooluk at yahoo.co.uk> wrote:
>>
>>No idea whether this is true or not, as it
>>was in part of a spam email, but because of
>>the TI link, I thought it might be of some
>>interest here (and perhaps someone can confirm
>>whether it's true or not?):
>>
>>
>>In 1960 an engineer working for a watch
>>company in Switzerland discovered that a small
>>crystal would vibrate at a constant rate.
>
>I imagine the history of crystal oscillators goes back a lot longer
>than the 1960s.
>
>A quick web search found this article with much earlier dates:
>
>http://www.ieee-uffc.org/fc_history/bottom.html
Hi
The use of quartz crystals in watches did take some invention.
Most crystals used for oscillators would have either had to be made
very large to get to lower frequencies or run at high frequencies.
Running at high frequencies would run the battery down
quite soon.
It was the concept of the cantilever mounted crystal that allowed
a piece of quartz to both oscillate at a low frequency and be small
as well.
They also found a cut with the right temp coef to work well attached
to a humans arm.
It was these things that made the quartz watch work. The Swiss
were into making chronometers. This also required that they maintain
exact time, over a wide range of temperatures. With out additional
correction, these quartz watches can't meet such requirements.
Of course, the Swiss didn't think that most would keep their
watch with them most of the time and would still be quite accurate.
Such is life.
When looking at the inventions of the twentieth century, I have
considered the quartz oscillator to be the most important. No good
replacement has been found. Tubes to transistors to FET's and the
quartz crystal is still essential.
Dwight
_________________________________________________________________
Don?t miss your chance to WIN 10 hours of private jet travel from Microsoft?
Office Live http://clk.atdmt.com/MRT/go/mcrssaub0540002499mrt/direct/01/
> Surely the easiest way would be to find a 9-Track with SCSI interface
> and hook it directly to the PC.
It is. I have read thousand of tapes with a Powerbook G3 and various
SCSI interfaced drives (Kennedy, HP, M4 Data and Qualstar). Surprisingly,
for 1600/6250 the Qualstar 34xx is the best at recovering data. The Kennedy
96xx was working great on 800bpi tapes 'til the takeup tension arm started
failing self-test.
This message has been forwarded from Usenet. To reply to the
original author, use the email address from the forwarded message.
Date: Mon, 19 Feb 2007 17:02:56 -0500
Groups: alt.folklore.computers
From: "Vic45" <vhnews at bellsouth.net>
Org: BellSouth Internet Group
Subject: Diablo 630 printer and accessories
Id: <f8pCh.8731$e8.4025 at bignews1.bellsouth.net>
========
I have a Diablo 630 with print ribbons, one metal print wheel and several
plastic print wheels. This unit was functioning perfectly when I took it
out of service 20+ years ago. How might I find a good home for it? I am in
the Atlanta area.
Vic
I worked for Tek during the mid 70's on the 4010 series. Field service in the Los Angeles area.
Yes, the flood guns that cause the tube to store the image AND erase it would go weak after a time. The length of time seemed to vary for many reasons. I found that customers that left the terminal on all the time (Tek used them as terminals for their semiconductor test systems S-3200 series) they seemed to last a long time, BUT if you turned it off for any length of time, it would take a really long time to warm up and erase properly. The bigger terminals (4014 and 4015) had some adjustments for collimation (the shape of the flood beam during the erase pulse), but not the 4010 series. If it finally starts storing and erasing after a period of time, I would suggest that you live with it. The tubes are no longer available (probably obsolete for over 10 years). If you can find them, the tube for a 4012/4013 or the Tek611 (storage monitor, also used in the 4002A (somebodies favorite) would work in your 4010. If you have the hard copy unit (the dry silver paper printer), you may have trouble getting clear copies. There were times when you replace the tube with a new one and you couldn't get a good copy. You ended up replacing it a second time. It didn't take too much time to replace one after you had done it a few times.
The computer interface.
In the standard terminal, there was one slot for a data comm interface. There were two RS232 interfaces available. The standard full duplex and a deluxe i/f. The deluxe version had switch selectable baud rates and could do half duplex comm. Remember this was back in the days of 300-1200 baud modems, both acoustic couplers and AJ and Racal-Vadic modems. That was back in the days when you paid a 'buck a baud' for a modem, especially above 2400 baud. Tek also had a series of TTY Port interfaces. These were meant to be directly connected to a mini. They had them for DEC PDP-11's ,DG Novas, and others. The DEC used either a M7800 or M7856. The M7800 was easy to install, it had rotary switches and you simply selected the external clock position and made sure you had the right crystal to get 38k baud. The M7856 had to be modified to replace the 110 baud position (IIRC) with a clock from the terminal interface. The neat thing about these interfaces was that when you got to the bottom of the screen, they would stop the clock to the computer interface and the screen would 'freeze'. For those unfamiliar with the 4010 series of terminals, after you clear the screen and start to display information, when you got to the bottom of the screen, the cursor would position itself to the top middle of the screen and over-write down the middle. Then it would go back to the left margin and continue. So, you had to stop the computer from sending data to the terminal to keep from scrambling your display. The DG Nova interface/computer would really scream, usually in the 300k baud range. It did a great job with the big (4014/4015) displays. Cal Tech had several of them in their seismographic lab. They threw up a screen full of graphics almost instantly. Very impressive. The PDP interface was good for about 38k to 56k, depending on the processor.
There were some modified products availbe to display a non-storing line of characters. IIRC, it wasn't available for the 4010, but was for the 4012 series. The 4012 had similar characteristic to the 4010 except it had a better character generator, lower case display and just generally a nicer terminal. I have mentioned the 4013 and 4015. These were versions of the 4012/4014 that had special character generators to be a terminal for the APL programming language. This language used graphical characters for its operators. An interesting language. I took a class in it at night. The IBM APL terminal was a 2741 (IIRC). For some oddball reason, it used 134.5 baud as a comm rate.
I found the answer to my original question...at least as far as running
SWTPC 4K BASIC on an Altair 680. You can do it. The modifications are
described in Kilobaud #8, August 1977. I will put up a copy on my web site
asap.
Every issue of Kilobaud from #7 to #12 in 1977 has an Altair 680 ad on the
back. Byte Mags also have a lot of Altair 680 ads on the back covers in
1976. I think that they were serious about the computer, as an entry level
system. That's just my opinion. I was too young to know first hand.
Bill
I have a Calcomp 563 drum plotter on my 8/E.
http://www.pdp8.net/563/563.shtml (need to make a better page now
that I have it running. Showed it at the last VCF east)
About as basic as can be. No command language here, it needs a pulse
>from the computer for each .005 inch step. The 8/E control card required
you to execute an instruction to generate each pulse. Plots about 1.5
inches per second.
The 30" pin feed paper the plotter want also doesn't seem to be available
any more.
For VCF I did some searching online for some good pen plot files to use
to demo but didn't find much. Anybody know of some good ones? The format
isn't important since I can find/write a program to translate. I ended
up using the samples from tek2plot that I used to demo my 4010.
> And there really are CS/80 docs?
http://bitsavers.org/pdf/hp/disc/5955-3442_cs80-is-pm.pdf
CS80 programmers manual
what isn't in there is the drive-specific info if you wanted
to write a drive simulator.
I had wanted to dump the data from a bunch of different drives
to get the info documented, but I haven't done it.
> Theyre not S1410's. Not even close. They have the black brick in the
> middle, HPIB connector and connect to two ST506-type drives.
I have the docs scanned, will have to remember where I put them. The box
was made by a third party orig. The Xebec controller with the epoxy brick
is the one that predates the LSI used on the 1410. There was a Multibus
version of the controller as well.
Here's one that even HP Greeley couldn't help with:
Looking for specs and ROMS or ROM images for Xebec Winchester
controllers such as those used in the HP 9133A disk.
I have the HP manuals and there is not enough info in them.
Somewhere I (may still) have DIP switch settings for the board, obtained
experimentally. I do not have
info in all the jumpers, ROMs, etc.
thanks...
--
jd
Decision maker, n.:
The person in your office who was unable to form a task force
before the music stopped.
Jim -
If TurboDOS is compatible with CP/M and gives you access to the HD, can't
you use a CP/M utility like DUU to see what's on it?
Bob Stek
Saver of Lost Sols
The drive works fine, what I can tell the, I have two tapes I put one in the
drive and the tape moves to the end or the start of the tape., but then no
software for the rest of the operation.
Al DePermentier
I have a pretty complete set of docs for the IBM PC/RT; the only thing I am
missing are the set of boot/install disks (I loaned them out for copying and
haven't gotten them back yet.) At some point, I'd like to get them to Al for
scanning ... in his copious spare time :).
If the CTOS is the same for the B20, Al should have those as I loaned him the
installation disks and docs to duplicate some time back.
Marvin
> From: Doc Shipley <doc at mdrconsult.com>
> boot floppy or install media for Burroughs B26 or any idea how to break
> the CTOS admin account
>
> AIX and/or AOS install media for a PC/RT (those used to be on
>
> Documentation for all the above systems
> mouse and/or color graphics for the PC/RT
> Hope this is the correct list, need drivers and 40 mb cartridges for Mac Tape drive, 40sc.
do you have a working drive?
every one I know of has had the rubber roller go bad.
I have a copy of the unreleased driver with a number of bug fixes from the author.
I find that if I don't ask occasionally, I don't get anything....
So,
I'm looking for various software bits:
boot floppy or install media for Burroughs B26 or any idea how to break
the CTOS admin account
same for a Siemens-Nixdorf RM400-10
AIX and/or AOS install media for a PC/RT (those used to be on
ftp.dementia.org, but are no longer there, and I can't find my copy)
XENIX 386
Actual media or floppy/tape images; I don't care.
Documentation for all the above systems
Hardware bits:
mouse and/or color graphics for the PC/RT
keyboard for Mindset system (with some sort of return agreement; I have
no idea whether the box is alive or not)
I don't expect any of this for free.
Doc
Hey all,
I just missed out on a Tek 7904 scope (four trace) with four plug-ins for
$299. Was that a deal? The plugins were 7A26 7A18 7CTIN and 7B53A.
Looks like a 500mhz scope, but with plugins good for 200mhz and a curve
tracer.
Are plugins for that scope readily avaiable and reasonably priced?
-Tom (my real name) Peters.
[Philosophy] "I shall cheerfully bear the reproach of having
descended below the dignity of history." --Lord Macaulay.
--... ...-- -.. . -. ----. --.- --.- -...
tpeters at nospam.mixcom.com (remove "nospam") N9QQB (amateur radio)
"HEY YOU" (loud shouting) WEB ADDRESS http//www.mixweb.com/tpeters
43? 7' 17.2" N by 88? 6' 28.9" W, Elevation 815', Grid Square EN53wc
WAN/LAN/Telcom Analyst, Tech Writer, MCP, CCNA, Registered Linux User 385531
A while back I posted that I had some fairly old XXDP+ library RL02 carts
and posted listings of the files on them.
Several people asked for copies of the images. I finally got around to
pulling them in via vtserver. You can get them at:
http://www.classiccmp.org/PDP-11/XXDP/
I also included listings of the directories.
Just out of curiousity, what's the best way to tell what version # of xxdp+
I have? I know the one labled 'Disk 8' comes up with CHMDLB0, while the one
labled 'olddiag' comes up with CHMDLE0. Can those be tied back to a
particular xxdp+ version?
Jay
> OK, I'm just not familiar with 9-track drives in the sense of who
> manufactures the guts that everyone uses.
OEM drive mfgs
60's 70's 80's 90's
Ampex--->?
Dymec------>HP------------------>
Kennedy------------------------->Bought by Shugart
CDC------------------------->Laser Magnetic Storage
Digidata--------------------->
Wangco-->Cipher----------->
PEC---->Pertec------------>
Qualstar--->
M4 Data---->
HP 7970 drives look a LOT like Kennedy 9100's
Lots of others primarily in mainframes (STC,
Telex,...)
Those two drives in the pics are fairly old incremental
transports.
As difficult as it is to find information on vintage terminals, its
even harder to find information on vintage pen plotters. A pen
plotter was about the only form of graphical output you could expect
to see on a vintage graphics system as film recorders were very
expensive.
OK, what do you have in your collection(s)?
--
"The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download
<http://www.xmission.com/~legalize/book/download/index.html>
Legalize Adulthood! <http://blogs.xmission.com/legalize/>
At 12:46 PM 2/17/2007 -0800, you wrote:
>>If I want to get up to 500 MHz (70 cm is 400+ right?) I could try to locate
>>a 7A29, or maybe there's another cheeper one? That's question number 1.
>>
>>2. Sounds like one definitely has to have a better timebase plugin, you
>>seem to be implying that, to make use of the bandwidth of the 7A29, right?
>>Which one, you list three. Or any of the above?
>
>I suggest you try to locate a older tek catalog from the 1980s. They
>are excellent sources of information.
>
>As far as amplifier plug ins, you could use a 7A19 also as they go to 600 MHz.
>
>7A29 DC to 1 GHz
>7A19 DC to 600 MHz
>7A24 DC to 400 MHz Dual Trace
>
>All these are 50 ohm input by my 1987 catalog.
>
>Time Bases are the
>7B80 Triggering to 400 MHz Basic Delayed Time Base
>7B85 Triggering to 400 MHz Delta Delaying Time Base
>7B92A Triggering to 500 MHz Dual Time Base, Delayed and Delaying
>
>I think the 7B85 is the most common and the most sought after time base.
>
>Another fun thing about the Tektronix catalogs is their original 1987
>asking prices
>
>7904A Mainframe $10,115 (no plugins)
>7A29 $3,325
>7A19 $2,895
>7A24 $2,655
>7B80 $1,660
>7B85 $1,940 This plug was in high demand on the used market
>7B92A $3,745
>
>7CT1N $1,785
>7A26 $2,350 This plug was in high demand on the used market
>7A18 $1,465
>7B53A $1,860 This plug was in high demand on the used market
>
>When I was selling Tek used equipment 10-15 years ago I felt lucky to
>get 10% of those prices. I bet it is a lot cheaper now.
>Nice scopes. I regretted getting rid of my 7603.
>Paxton
Wow Pax, very juicy and flavorful information. Thanks!
[Love] An absence, the decline of a dinner invitation, an
unintentional coldness, can accomplish more than all the cosmetics
and beautiful dresses in the world. --Marcel Proust (1871-1922)
--... ...-- -.. . -. ----. --.- --.- -...
tpeters at nospam.mixcom.com (remove "nospam") N9QQB (amateur radio)
"HEY YOU" (loud shouting) WEB ADDRESS http//www.mixweb.com/tpeters
43? 7' 17.2" N by 88? 6' 28.9" W, Elevation 815', Grid Square EN53wc
WAN/LAN/Telcom Analyst, Tech Writer, MCP, CCNA, Registered Linux User 385531
There is no written documentation I have ever come across that
there was ever anything called an Alto III.
The only follow on to the Alto II was the Alto II XM, which added
bank switched memory and a larger writable control store.
Alto II was a redesign of some of the Alto I for manufacturability
done in El Segundo.
Chuck Thacker did the "Dolphin", which was the first Xerox OIS
workstation. The 8010 is an adaptation of a paper design that
Butler Lampson did called "Wildflower"
The next machine Chuck worked on after the Dolphin was the
Dorado.
Hello, while doing some cleanup, I came across the October 1976 issue
of "Popular Electronics". Finding some fun ads for classic computers
I decided to scan them for the benefits of owners of those on this
list :-)
IMSAI 8080 full page color ad
Altair 680 full page color ad
Poly 88 3/4 page b/w ad
Schweber SC/MP 3/4 b/w ad
SWTP 6800 full page b/w ad
Processor Technology single column ad for an I/O card
I've put them up on picasa for now, but those are low quality jpg
images - if someone wants the full 600dpi lossless scans (huge!)
please e-mail me.
Note, I'm not quite sure about the copyright issues involved in
scanning ads for defunct companies out of defunct magazines. If
someone here tells me ther is an issue, I'll remove them ASAP.
http://picasaweb.google.com/Joachim.Thiemann/ComputerAds
Enjoy!
Joe
I appear to have misplaced, or accidentally given
away my SGI Crimson keyboard and mouse. Also, I
have a dial box, with AC adapter, and data cable
but cannot recall how to hook it into Crimson.
Seems to have the same proprietary mini-din that
Crimson Keyboard and Mouse use.
Does anyone want to part with for cash, or
trade? I could also borrow them for a few
days if someone is in Chicago area. I just
have a few things I have to get off machine.
I am seriously considering taking Crimson
out of my collection, so interested parties,
especially interested parties with keyboard
and mouse should email me.
Bradley
Hi,
A coworker has this old S-100 based machine (date codes indicate 1977
or 1978) for which he has no docs:
The cabinet has "Olson" on the front and the label on the back gives
the part number as NP-210.
The CPU card is a BYTE MPU C1000-1001.
There is a serial/parallel card: Solid State Music IO-4. All the
chips have been removed from the sockets on this card :-(.
There are also 3 cards of memory on the machine, mostly fully
populated.
There is a nice set of lights and toggle switches on the front panel.
The front panel card connects directly to the bus and has a ribbon
cable that connects to the CPU card. (Was it common on S-100 bus
based systems to have a front panel that was a card attached to the
bus?)
My guess is that there's a boot PROM on the front panel card (there
are two PROM sockets on the CPU card that are empty) and that this is
debouncing the toggle switches and whatnot and controlling the LEDs.
I told him I'd ask around for information on the boot PROM and the
cards in his system. Can any of you S-100 fans help me out here?
--
"The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download
<http://www.xmission.com/~legalize/book/download/index.html>
Legalize Adulthood! <http://blogs.xmission.com/legalize/>
I was listing some books on VCM, and ran across a mechanical EXCLUSIVE OR
demonstration photo using string. I had never seen or heard of such a thing
before and thought it was very cool! The book is Computer Hardware Theory, and a
jpg of the string XOR picture is at:
http://www.rain.org/~marvin/strngxor.jpg
Richard wrote:
Al Kossow writes:
> fortunately, there was only one other bidder.
If its docs or software, I don't bid against Al Kossow knowing I'll
reap the benefits later anyway :)
---------------------
Likewise. But I also ask Al when something comes up and he isn't bidding,
in case he missed it. Usually, it means he didn't bid because he already
has it. I try to buy what I can and give it to him for the archives. That
helps lower his expenses.
Finally, I never sell any documents or tapes until Al has a chance to add
them to his archives. He has first dibs on anything in my collection.
When someone is doing so much to benefit the entire hobby, they should be
supported in any way possible.
Billy
This message has been forwarded from Usenet. To reply to the
original author, use the email address from the forwarded message.
Date: Fri, 16 Feb 2007 10:35:50 +0900
Groups: comp.sys.dec,alt.sys.pdp11
From: Tim Sneddon <tesneddon at bigpond.com>
Subject: Selling my PDP-11/83 and various spares...
Id: <45d4fdf3$0$16270$88260bb3 at free.teranews.com>
========
All,
I have to move house and unfortunately the new place doesn't have enough room f
or my
PDP-11/83 and all my other junk. Over the next week or so I will be putting up
whatever I
I think might sell on eBay. You can see the current list at:
http://search.ebay.com.au/_W0QQsassZtesneddonQQhtZ-1
Hopefully that URL will work for everyone else :-)
I have split up the system into parts as I can't imagine too many people would
want to
ship the entire machine, anywhere. There are also some spares and as I disassem
ble my
MicroVAX 3400 and VAX 4000/200 more Q-BUS parts will become available.
Once again I'm only selling this equipment because I don't have a choice. I wou
ld like
to give it away, but I am also getting married soon and every little bit helps.
Hopefully this gear will find it's way to a good home.
Regards, Tim.
PS. Apologies for the cross posting.
--
Posted via a free Usenet account from http://www.teranews.com
At 12:01 -0600 2/15/07, Richard wrote:
> > Look at photo number 7. Looks like an HP 1000 E Series machine. Too much
>> other stuff in the lot though.
>>
>> Bob
>>
> > http://cgi.govliquidation.com/auction/view?id=1124213&convertTo=USD
>
>That's one of those wiggy lots where I don't quite trust govliq. The
>picture and lot description list HP 1000, but its not in the lot
>manifest.
>
>Anyone near San Antonio, TX want to check it out?
I'm in San Antonio, and I'll have an opportunity to do that on
Wednesday, 21-Feb. Email if you are interested in having me do so. I
know nothing about HP 1000 machines, so I'll need lots of
"look-for-this" type information if I'm to be of much use.
--
Mark, 210-379-4635
---------
>you don't have to control EVERYTHING. you can let things happen
>and then merge the streams. there is elegance in simplicity.
- Arthur Leung, 2006
> Wow! Never seen a pile of Xerox stuff like that in Ohio...
Ohio State used a bunch. The old Interlisp-D mailing list (which
was gatewayed to usenet as comp.sys.xerox) was run by Arun Welch
at OSU.
> I don't know if I'll be able to get hold of any
> software or docs yet.
Docs should be on bitsavers.
I should have disc images for the major releases of XDE
(the Mesa development environment) and most releases of
Interlisp-D.
35 years of working computer games consoles will be starring in a new
exhibition at the Museum of Computing in Swindon. The exhibition charts
the machines, the companies and the games characters that are now part of
gaming history. The exhibition is open daily, is free of charge and runs
until early August 2007.
'Pong to Playstation' shows the earliest and most unusual machines that
ever graced a living room. From the world?s first TV tennis game, through
the rise of gaming companies such as Atari, Nintendo, Sega and Sony, over
40 of the best-loved consoles and accessories will be on display.
Throughout the exhibition there will be a number of hands-on machines
allowing adults to relive their youth and children to play classic games
that people still rave about today. The original Super Mario, Sonic the
Hedgehog and Space Invaders are just some of the games available on
original 1980?s machines.
As well as playing the vintage consoles, visitors will be able to explore
the design of game characters and build their own or existing characters
>from Lego! 'Pong to Playstation' runs from Saturday 17th February to
Saturday 18th August, Mon-Fri 10:00-16:00, Sat 09:00-13:00. Admission
free.
Simon Webb
Curator, Museum of Computing
www.museum-of-computing.org.uk
Tel: 07939 582544
A while back a guy (ebay ID was something similar to 'jeffking') was selling
cartons of paper tape for $4.00 each.
Someone here said that the tape they got was oiled, don't remember who. I
bought a box because all the tape I have is unoiled, but what I got was
definitely not oiled (nor had it been in the past).
It's no big deal at all, I'm happy to have more tape (especially at $4 a
carton!!). But I was curious if others got in on this deal and if what they
got was oiled or not? I wanted oiled for an ASR33...
Jay
The news isn't good. I don't know if anyone is manufacturing punch
(tab) cards anymore. I've done some poking around.
National Card West in Long Beach, Calif was acquired by Pacific Data
Forms, Inc (www.pacificdataforms.com). PDF sold the punch card
equipment to B&D Litho in Phoeniz, AZ, but B&D either no longer has
it, or doesn't know it has it, but either way, doesn't make tab
cards.
Don't call the 702 number for National Card West in Las Vegas -- that
number now belongs to a private individual.
U.S. Card Corporation in Tiffin, Ohio has closed, according to Doug
Jones.
Pacific Paper Products (http://www.pacpaper.com/lccc-contab.html)
makes continuous feed tab cards -- but that's not what we're after.
Ron at B&D gave me these references from the 2001 Print Solutions
Magazine Buyers Guide, all of which went to a dead end:
Kay Toledo Tag, Toledo, OH
no more
Impact Printing, Hayward, CA
no
Windy City Press, IL
no
Marathon Label, Wassau, WI
could probably do it but hasn't in the last 15 years
and doesn't have the dies to cut the cards -- would have to
be a custom job
Doug Jones (Mr. Punched Card himself) may be the right person to
respond to this -- Doug, do you know of any card manufacturers left?
Brian
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
_| _| _| Brian Knittel
_| _| _| Quarterbyte Systems, Inc.
_| _| _| Tel: 1-510-559-7930
_| _| _| Fax: 1-510-525-6889
_| _| _| Email: brian at quarterbyte.com
_| _| _| http://www.quarterbyte.com
> Message: 29
> Date: Fri, 16 Feb 2007 07:39:32 +0100 (MET)
> From: Erik Baigar <erik at baigar.de>
> Subject: Re: pen plotters?
>>>
>> I have a copy of "Calcomp 906/907/951/PCI Online Controller
>> Installation Manual"
>> in which section 3 is 'Command Descriptions' which has 49 pages of
>> descriptions.
>>
> Hi Roger, this is exactly what I have been
> looking for since I got the plotter 10 years
> ago.
>
> In the first year I did a lot of research to
> reverse engineer the basic commands so I am
> able to control the basic functions of the
> plotter but the more advanced features like
> drawing speed, character commands, maybe
> hatching commands I was unable to decypher.
>
> Are you willing to share this information?
> Of course I'd pay for copy and shipping and
> I could put the copy onto a scanner...
>
> Erik.
Yes I can copy it for you. It is stapled so I can
un-staple it and put it through the Automatic Document
Feeder on the copier. Actually the copier can scan into
a folder on the network server I think, though I think
the resolution is fixed, either 300 or 600dpi, and its
probably always 24 bit colour. That makes the files
for a 200 page document a bit big. I will find out the
details when I get to work and let you know so you
can decide how you want it.
You will need to agree that if the copyright owner
were to come after me that you would destroy the
copy, but I don't think that's likely.
I once visited CalComp's plant in Anaheim , and there did
not seem to be many people about, and when I went to
the toilet, that's when I realised they were not doing well.
Its surprising what you can tell from a company's toilets.
Soon after it was official, (Chapter 11?).
Roger.
They are rough, but with some work I think they can look decent:
http://www.box.net/public/47dcog63bd
More detailed pics of the first one:
http://www.box.net/public/t3d0ly3yas
with some of it cleaned up:
http://www.box.net/public/oqs1fchyu0
I hope to get some (or all?) of the boards soon too, since they are all
missing. The third machine has indications inside that it was an 1108
(LISP) workstation. I don't know if I'll be able to get hold of any
software or docs yet.
Richard Lynch
On 15 Feb, 2007, at 08:17, cctalk-request at classiccmp.org wrote:
> Message: 24
> Date: Thu, 15 Feb 2007 07:32:02 +0100 (MET)
> From: Erik Baigar <erik at baigar.de>
> Subject: Re: pen plotters?
> To: djg at pdp8.net
> Cc: cctech at classiccmp.org
> Message-ID:
> <Pine.GS4.4.10.10702150728110.7126-100000 at deepspace.network-
> defense-systems.com>
>
> Content-Type: TEXT/PLAIN; charset=US-ASCII
>
>
> On Wed, 14 Feb 2007 djg at pdp8.net wrote:
>
>> I have a Calcomp 563 drum plotter on my 8/E.
>> http://www.pdp8.net/563/563.shtml (need to make a better page now
>> that I have it running. Showed it at the last VCF east)
>
>> to demo but didn't find much. Anybody know of some good ones?
>> The format
>
> With my Calcomp 1038 I encountered the same problem since the
> plotter language PCI/906 died out and I do not have got any
> documentation about this. In reverse engineering I found
> out how to do the basic operations (gotoxy and pen up / pen
> down) and wrote a converter progaram. To get samples my
> choice was to take the hp2xx utility which is available for
> many platforms. With this you can convert HPGL to a simple
> gotoxy-style which is than easy to process. This saved a lot
> of work on an own interpreter and you are able to plot
> most of the hpgl files...
>
> By the way: Any documents about PCI906 ot it's successor
> PCI/907 out there?
>
> Best regards,
>
> Erik.
I have a copy of "Calcomp 906/907/951/PCI Online Controller
Installation Manual"
in which section 3 is 'Command Descriptions' which has 49 pages of
descriptions.
Would this help?
Roger.
I am comfortable with people using whatever alias they desire - There
has not been a policy to date.
In any case, it is not the list that defines the name, it is the
'sender' field of the persons email product...
BTW, As a quiet person who has enjoyed reading the list (via digest),
there has been many times when I simply hit the delete button, as a
number of people were getting quite petty. I see the same behaviours
amongst some of the people in other groups I am members of - It speaks
volumes about the participants. :-(
Just my 0.02C worth
Hex Star - Well done for a quite amusing handle.
Doug
(For the purposes of this email - also known as >>> HACKSAW <<< , Sadly,
my profession dictates that I must now change the email system back to
use my name - Lest some of my clients believe that I am being
unprofessional !)
On 2/14/07, Al Kossow <aek at bitsavers.org> wrote:
> >
> > I was wondering if we can estabish that you have to
> > use your real name here?
> >
> > "Hex Star" stands out like a sore thumb. Everyone else
> > on this list uses their real name, not a "handle".
> >
> >
> >
> >
> >
Your singling out of a member is not the least bit appreciated...if you
intended to send me a message by doing so you failed miserably...next time
try communicating with me properly and politely offlist and perhaps we can
get somewhere ;-)
------------------------------
--
Doug Jackson, MAIPM, MIEEE
Senior Information Security Consultant
EWA-AUSTRALIA
PO Box 6308 O'Connor ACT 2602
Level 1, 214 Northbourne Ave, Braddon ACT 2612
Tel: +61 (0)2 6230 6833
Fax: +61 (0)2 6230 5833
Mob: +61 (0)414 986 878
http://www.ewa-australia.com
============================================
IMPORTANT: This email remains the property of Electronic Warfare
Associates - Australia. If you have received this email in error,
you are requested to contact doug.jackson at ewa-australia.com or Ph
+61 2 62306833 and delete the email. This message is not to be
copied or distributed to other parties without the express permission
of the author. Any personal information in this email must be handled
in accordance with the Privacy Act 1988 (Cth).
============================================
James B. DiGriz wrote:
> The Commodore and Amiga BBSes were another
> story. It was more like handles were required.
> Maybe that was just the local scene, which was
> also heavy into CB radio.
My feeling:
Using a real name lends a permanence and signifigance
and professionalism to a post or action.
Using a handle especially a CB-type or phreaker-type
one subtracts permanence, signifigance, and
professionalism.
Expecting professionalism or signifigance on this
mailing list is perhaps being too optimistic. It's
wonderful to see it when it happens, but I do not
expect it to happen.
Tim.
--- arcarlini at iee.org wrote:
> Tony Duell wrote:
>
> > However, 'What is an instruction?'. I've heard i
t
> said that the 11/780
> > averaged 500,000 of its machine instructions per
> second, but that that
> > was about as much processing as 10^6 of other
> machine's instructions
>
> The VAX-11/780 cranked out about as many Dhrystone
s
> as an
> IBM System/370 158 which did (apparently) chew
> through about
> one million instructions per second.
>
**>> snip <<**
> Antonio
>
Speaking of Dhrystones.... what is one?
Also, what does the MHz, or GHz, measure
exactly?
I understand MIPS (Million Instructions Per
Second), FLOPS (Floating-point Operations Per
Second) and G-FLOPS (Giga-FLOPS) but the
aforementioned two are a mystery to me.
Regards,
Andrew D. Burton
aliensrcooluk at yahoo.co.uk
Just a thank-you to the list. I accidentally broke the top to a very
nice filing box I've been using for years (it was designed for
floppies, I think, but I now use it for paper - 8" floppies, I suspect,
since an 8?" paper sheet just barely fits).
Turns out acetone dissolves the plastic, and I was able to solvent-weld
the pieces back together with acetone. I let it dry over the weekend
and now it is all good.
But I never would have thought to try that without all the discussions
of such things here on the list. Hence the thanks. Neat the ways
knowledge finds unexpected application!
/~\ The ASCII der Mouse
\ / Ribbon Campaign
X Against HTML mouse at rodents.montreal.qc.ca
/ \ Email! 7D C8 61 52 5D E7 2D 39 4E F1 31 3E E8 B3 27 4B
>
>Subject: SWTPc 6800 vs. Altair 680
> From: "B. Degnan" <billdeg at degnanco.net>
> Date: Wed, 14 Feb 2007 15:59:40 -0500
> To: cctech at classiccmp.org
>
>Are the programs from the SWTPc 6800 interchangeable with the Altair 680?
>Is there a good web reference that compares these two?
>
Yes [it is a 6800 is both cases] and no [they are not identical for io
or memory maps]. Depends on the IO and where the program runs in memory
as they have slightly different memeory maps. Also if memory serves
the 680 used a differnt monitor program than SWTP so any program that
uses the monitor for IO or other routines are iffy.
Allison
Al wrote:
> "Hex Star" stands out like a sore thumb. Everyone else
> on this list uses their real name, not a "handle".
There's a couple of respected folks here using
handles but they've been doing so for at least a decade.
The concept of "screen names" has some "classic"
elements esp. w.r.t BBS's (some legit uses) and
phreaking (completely non-legit but somewhat
respectable in a techie sense.)
I grew up not with BBS's but with E-mail lists and Usenet
and had used my real name there enough that the only
time I use a screen name is when I want to hide who I am,
something only rarely done.
Before that, it was ham radio, where using a real
call sign instead of a "handle" was a way of differentiating
the hobby from CB and trying to get some respect.
Tim.
There is a product called Cyanopoxy that was written up in the model railroad press a few years ago. It can bond materials such as nylon and delrin. I haven't tried it myself, but the reviews are favorable. It is fairly expensive, though. The link is: http://www.coolchem.com/index.cfm?fuseaction=cyanopoxy.
Bob
+++++++++++++++++++++++++++++++++
Message: 16
Date: Wed, 14 Feb 2007 14:45:40 -0600 (CST)
From: Tothwolf <tothwolf at concentric.net>
Subject: Re: Thank you, list!
To: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk at classiccmp.org>
Message-ID: <Pine.LNX.4.64.0702141442220.10748 at host10.invalid.domain>
Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed
On Tue, 13 Feb 2007, John Robertson wrote:
> At 1:40 PM -0800 2/13/07, Chuck Guzis wrote:
>>
>> Great that it worked for you, but be advised that acetone will also (in
>> my experience) turn some plastics into grainy mush, so it's not a
>> universal solution for plastics.
>
> Yes, methylene chloride is the proper plastic solvent for styrene types.
> Plexiglass, Lexan, and many plastics will soften with this, and bond
> almost instantly. Hold for a few seconds to set, then let sit overnight
> to reach maximum hardness. Doesn't dissolve the plastic other than at
> the contact point. This is the stuff they use in plastic shops...along
> with some other solvents.
Has anyone found a solvent that will solidly weld the PC+ABS blends yet? I
run into various blends of PC+ABS all the time and have yet to find
anything that will work well. Methylene Chloride will melt the ABS part of
the blend, but it makes a brittle joint.
-Toth
+++++++++++++++++++++++++++++++++
Why is it that there still has been just one patch released from Apple (that
one that fixed the QuickTime exploit) to address just one of the many Month
of Apple Bugs? These bugs need to be fixed and I really hope that Apple is
actively working on patches for all of the exploits related to Mac OS X that
the MOAB team found...is it because they're putting all their programmers
energy into 10.5? If that's true they really should take a few of the
programmers and assign them to making patches for these exploits...what's
the chances of these exploits being fixed in 10.5? c'mon Apple...get on it
already! :-(
Was going through all my HP paper tapes to inventory them and came across
the following mini-cart cartridge tapes (the kind you use in a 264x
terminal, DC100 I think). Unfortunately it is an obviously incomplete set,
but thought I'd list it here in case anyone is desperate for one of them.
They are all original HP labels.
RTE II + III + IV, MINI-CART (PE), #1 (C) rev 1840
RTE II ONLY, MINI-CART (PE), #2 (C) rev 1840
DG 1000 CRTG #1*, MINI-CART PE FMGR, 24998-13301 (C) REV 2326
DG 1000 CRTG #2, MINI-CART PE FMGR, 24998-13302 (C) REV 1926
DG 1000 CRTG #5, MINI-CART PE FMGR, 24998-13305 (C) REV 1822
Jay West
I've unearthed a Televideo 925 that I'd like to put into use. The only
problem seems to be a missing keycap. I forget which one at the moment.
Does anyone here have a broken 925 keyboard?
--
David Griffith
dgriffi at cs.csubak.edu
A: Because it fouls the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?
I was wondering if we can estabish that you have to
use your real name here?
"Hex Star" stands out like a sore thumb. Everyone else
on this list uses their real name, not a "handle".
-------------Original Message:
Date: Wed, 14 Feb 2007 22:54:36 +0000
From: Philip Pemberton <classiccmp at philpem.me.uk>
Subject: Re: WTD: Fuse PROM programming algorithms
M H Stein wrote:
> If you don't find 'em elsewhere, I've got Harris ('78), Intel ('76), Signetics ('78)
> and National ('77) databooks in front of me. Don't know about Intersil; was looking
> in the MMI book a while back, but now I can't remember where I put it down at the
> time (probably the same place as the cordless phone ;) .
Don't worry about the Intersil databook - Harris bought Intersil in the
mid-70s (IIRC), so an older Intersil databook would probably have the same (or
very similar) info to the Harris book.
I'd hazard a guess that most of the PROMs from a given manufacturer will use
the same algorithm, so all I really need are scans of the pages detailing that
manufacturer's algorithm and pinouts. The latter I already have in the form of
a file called 'promref.txt' from the old Wiretap arcade archive :)
Thanks.
--
-----------Reply:
Scans of the Harris, Signetics, NS & Intel data are on the way to you.
I think someone else on the list had the MMI data; if I find mine I'll let you know.
mike
On 2/12/07, Ethan Dicks <ethan.dicks at gmail.com> wrote:
> On 2/11/07, Brent Hilpert <hilpert at cs.ubc.ca> wrote:
> > Ethan Dicks wrote:
> > > Had a good day at the Mansfield Hamfest today. I now have [a]...
> > > nixie-tube panel DVM...
> > ^^^^^^^^^^^^^^^^^^^^
>
> > If that is a Weston 1294-series DVM (4.5 digits, TTL, fits standard 4"*1.75"
> > industrial instr. panel), I can supply the schematic.
>
> It _is_ 4.5 digits... and does fit a standard panel opening, but
> it's an MDPM-3 by Instrument Displays, Inc., of Haverhill, Massachusetts.
OK... I've taken it apart to have a look... the IC dates are late 1968
- there are a few DIPs and a number of 8-pin epoxy-covered
button-shaped ICs all over the innards. The DPM came with a 36-pin
AMP connector with 4 wires loaded, two for power and two for input
voltage. The power wires go right into a transformer at the back of
the unit, leading me to suspect that it takes 110VAC, but perhaps it
takes 24VAC. I have not yet powered it up - does anyone have any idea
what it would take to fire it up?
The nixie tubes, for those who track such things, are 3 Burroughs
B-5750 7/8"(?) nixies, with a block next to them for "1", "+", and "-"
(3 individual neons). The legend on the front proclaims it to be a
"mini-diget dpm".
I've never fiddled with a pre-LED DPM, so if anyone knows what voltage
it's expecting, I can fire it up to see if it works or is merely a
source of nixies.
Thanks,
-ethan
---------Original Message:
Message: 11
Date: Tue, 13 Feb 2007 19:31:14 +0000
From: Philip Pemberton <classiccmp at philpem.me.uk>
Subject: Re: WTD: Fuse PROM programming algorithms
<snip>
TI are nice enough to put their programming algorithms online, I've found a textual
description of the NatSemi algorithm (though it would be nice to have the
timing diagrams, if any), and I tracked down an old rev of the 82S129
datasheet that includes some info on the Signetics Generic I algorithm. Those
three would be enough to get by on for now, but it would be nice to have read
and write support for e.g. the Intersil and Monolithic Memories chips.
As dictated by Sod's Law, I've got the Intersil linear databooks, but not the
logic/PROM/whatever databook. As far as MMI goes, I can't even find a copy of
the relevant databook for sale, hence why I asked for scans or photocopies
(I'm not fussy about which, and I'm willing to pay for the copying and
shipping/postage).
Thanks.
--
Phil
-----------Reply:
If you don't find 'em elsewhere, I've got Harris ('78), Intel ('76), Signetics ('78)
and National ('77) databooks in front of me. Don't know about Intersil; was looking
in the MMI book a while back, but now I can't remember where I put it down at the
time (probably the same place as the cordless phone ;).
mike
--- der Mouse <mouse at rodents.montreal.qc.ca> wrote:
> > [...] be advised that acetone will also (in my
> experience) turn some
> > plastics into grainy mush, [...]
>
> Well, I did first try applying acetone to a
> noncritical area of the
> same part, to see what it would do.
>
Yes, acetone also disolves polystyrene.
Some uni/college student visited the lab where
I work (I'm a technician, not a chemist, and
my chemical knowledge is limited other than
what I have learnt at work over the last 8
years) a few years ago and decided to clean
the runners on the plastic slidey doors (do they
have a proper name?) on the side of one of
the balances.
Naturally, as someone else mentioned, the
acetone turned the plastic into mush and
the door become tough to open, often sticking,
instead of being smooth and easy.
Generally, we use acetone to clean marker pen
off of glass equipment (eg. volumetric flasks)
and for cleaning oil/grease out of the metal
cups (we test for fat/oil/grease content in the
waste water from factories that send there
waste into our* sewers)
Getting it back on topic... is there an easy
was to determine which computers/peripherals
can be cleaned safely with acetone, or similar
substances?
Regards,
Andrew D. Burton
aliensrcooluk at yahoo.co.uk
* I work for a well known UK water company, mainly b
ased in East Anglia.
M H Stein wrote:
Do have a few manuals on other plotters. Recently found one on a Houston
Instruments plotter. It'll go to Al the next time we get together.
Billy
==Mike's Reply:
Which Houston plotter? 595/695 ?
mike
--------------------
Don't know. It is up in Pleasanton in a big pile of stuff for Al, next time
I see him. I'm going up on the 24th, so I'll try to have a look then. I
just buy stuff like this manual when I come across them at flea markets,
etc. Give them to Al for his archives.
Billy
> I know Al and a few other people have setups for digitizing the analog
> outputs of the read heads for 7-track and 9-track magtapes, but has
> anyone concocted a similar beast for the DC100 or QIC tapes?
>
> Is it even possible?
Yes, it is probably what I'm going to have to use to recover
the Tektronix 4051 tapes that I got from Jim Willing.
It shouldn't be to difficult to do something similar with heads
that don't move (HP, Apple Tape Backup, etc). Fiddling with the
firmware for QIC drives with serpentine recording is more difficult
Would be a PA8E1
Seagate changed the part numbers when they took over
the product line.
I don't think it has a manual head lock
Have a manual scanned, will get it on line.
Hi,
I'm currently looking for information on programming algorithms for the old
fuse-link PROMs (Signetics 82S series, AMD 27S series, National Semiconductor
74S series, TI 18S series, Harris/Intersil 7000 series, Fujitsu 7000 series
and MMI 6000 series). Does anyone here have copies of the memory product
databooks from any of these manufacturers?
I've got the Signetics Generic I algorithm (but not Generic II), and part
of the NatSemi algorithm (text only, no timing diagrams), and nothing at all
for the others.
Main reason I'm asking is because I'm designing a programmer to do the 82S
series, and I'd like to make it as universal as possible - i.e. if possible,
I'd like it to be able to read and program the other chips too.
I'm willing to pay for photocopies of datasheets, or the entire databooks
if you'd rather sell the book itself.
Thanks.
--
Phil. | (\_/) This is Bunny. Copy and paste Bunny
classiccmp at philpem.me.uk | (='.'=) into your signature to help him gain
http://www.philpem.me.uk/ | (")_(") world domination.
I'm preparing to have several 8" sealed HDA SMD drives shipped to me.
They're what Prime called a model 4735 496 MB drive, and CDC called
(I think) a 9720-500.
If the manual is on Bitsavers, I don't know what it looks like.
Is there a shipping lock on the heads of these drives? How to set it?
Thanks,
De
---------------Original Messages:
Message: 23
Date: Tue, 13 Feb 2007 12:20:55 -0800
From: "Billy Pettit" <Billy.Pettit at wdc.com>
Subject: pen plotters?
Richard wrote:
As difficult as it is to find information on vintage terminals, its
even harder to find information on vintage pen plotters. A pen
plotter was about the only form of graphical output you could expect
to see on a vintage graphics system as film recorders were very
expensive.
OK, what do you have in your collection(s)?
---------------------------------------
==Mike's Reply:
HP7475A
CGP-115
=================
Do have a few manuals on other plotters. Recently found one on a Houston
Instruments plotter. It'll go to Al the next time we get together.
Billy
==Mike's Reply:
Which Houston plotter? 595/695 ?
mike
Has anyone here read this book by Edwin Black?
http://www.amazon.com/IBM-Holocaust-Edwin-Black/dp/0751531995/sr=8-1/qid=11…
I have. I was wondering what everyone else thought about it.
The book makes me hate things like paper...
I'm not trying to stir anything up here. I don't blame IBM as a company or
dislike any of its products because of it. But reading the book was sure
an eye opening experience. I just wanted to start the discussion for
now. I don't have time right now to write anything decent right now.
Grant
> From: Jim Leonard <trixter at oldskool.org>mat=flowed
>
> Marvin Johnston wrote:
> > I've been doing that for some time, and probably have about 50 or so stockpiled.
> > BUT, it may be just a waste of time. I put up 20 100-450 MB IDE and SCSI HDs on
> > VCM, then Ebay, and back on VCM more out of curiosity to see if there was a
> > demand. Right now, there doesn't seem to be.
>
> Eventually, there might be. IDE drives from 300-500 (but under the
> 540MB BIOS limit of early 386s) are still somewhat sought after. I
> wouldn't expect more than $5 for each drive though.
I think the $25.00 for a quantity of 20 drives is under $5.00 each :).
At 09:58 PM 2/10/2007, you wrote:
>On 2/11/07, Grant Stockly <grant at stockly.com> wrote:
>>
>> >Did anyone make S-100 SCSI? One could roll ones own, but that's a
>> >different level of expense.
>>
>>The 5380, 3 resistor packs, a '138, couple latches, and about 10 square
>>inches of an S-100 breadboard card.
>
>Right... the SCSI chip is cheap enough (and supported under Minix,
>probably, since there were several 3rd party Amiga controllers with
>the 5380), but the real expense is the breadboard card.
Really? I guess I don't know where to get those. I've got one and I just
keep reusing it. They'd be $20 plus shipping if were to make some. Any
interest?
Of course, if I made a SCSI card they would be $10 without parts. (not
full size S-100) ; ) SCSI is kind of dead, but it would be a fun card to
make...
Grant
> From: Dave McGuire <mcguire at neurotica.com>
> Speaking of which...does it make sense to start preserving
> (hoarding) older, low-capacity hard drives, be they IDE or SCSI, for
> smaller machines? They seem to be drying up fast.
I've been doing that for some time, and probably have about 50 or so stockpiled.
BUT, it may be just a waste of time. I put up 20 100-450 MB IDE and SCSI HDs on
VCM, then Ebay, and back on VCM more out of curiosity to see if there was a
demand. Right now, there doesn't seem to be.
Richard wrote:
As difficult as it is to find information on vintage terminals, its
even harder to find information on vintage pen plotters. A pen
plotter was about the only form of graphical output you could expect
to see on a vintage graphics system as film recorders were very
expensive.
OK, what do you have in your collection(s)?
--
---------------------------------------
Have a Calcomp 565 drum pen plotter circa 1963. Includes manual with
schematics. And also has someone's home brew interface design to an 8080 on
a paddle board.
Do have a few manuals on other plotters. Recently found one on a Houston
Instruments plotter. It'll go to Al the next time we get together.
Billy
I've recently managed to get my HP 88780 drives to ALMOST work with a PDP-11/34a.
The controller I'm using is an Emulex TC13, TS11 compatible.
Tape movement control seems fine, but data transfers are a problem. At most I've
been able to get the first one or two blocks read or written. However, the TC13
errors out and usually puts the drive offline. ultrix 3.1 and xxdp both choke when
trying to talk to the 88780 drives.
So, thought I'd check... Does anyone have an HP 88780 drive working with an Emulex
TC13 controller? As I've tried three different drives I'm starting to wonder if
the TC13 simply won't communicate well with the 88780.
Please respond to staylor at smedley.mrynet.com if replying directly, or to the
cctalk list.
TIA,
-scott
On 13 Feb 2007 at 10:14, Marvin Johnston wrote:
> Yes, I too read the book and found it interesting. However judging by
> quite a few comments from a google search, it appears that there might
> be a bias and some inaccuracies in the book. Regardless, it does make
> for a rather interesting read.
I first came across this topic when it was published as an article in
IEEE Annals of the History of Computing. I've subsequently read
critiques of the cited book as being inaccurate and biased.
I can only observe that commercial interests will chase a profit no
matter where it comes from. Henry Ford sold trucks to Stalin;
Prescott Bush and George Herbert Walker did business with the Third
Riech. The Forbes and Delano families sold opium to the Chinese.
The Chinese in turn are getting oil and gas from Sudan.
And so it goes. It's the nature of human existence.
Poke at almost any pile of money long enough and you'll find a
scoundrel, murderer or horse theif.
What this has taught me that corporate monied interests are amoral,
looking only to increase profit. Similarly, governments largely
exist to serve their own interests and, for the most part, not the
interests of the governed.
Our job as citizens of the world is not to expect these tigers to
change their stripes, but rather to make sure that their actions are
kept in the bright light of public scrutiny. Attempts to hide under
some notion of confidentiality or secrecy usually provide fertile
ground for mischief and need to be resisted.
Cheers,
Chuck
Chuck Guzis wrote:
I first came across this topic when it was published as an article in
IEEE Annals of the History of Computing. I've subsequently read
critiques of the cited book as being inaccurate and biased.
Cheers,
Chuck
-------------------
This reminded me that I've been looking for copies of the Annals for a long
time. I had to drop out when my IEEE subscription bill passed $300 a year.
Just couldn't afford all those magazines.
Now I'm sorry that I did that and have been searching for copies. Any list
members have any issues they would be willing to part with? I would really
like to catch up.
Please write to me off line if you have any issues you can part with. Will
go to a good home and be read!
Billy
billy.pettit at wdc.com
>
> As difficult as it is to find information on vintage terminals, its
> even harder to find information on vintage pen plotters. A pen
> plotter was about the only form of graphical output you could expect
> to see on a vintage graphics system as film recorders were very
> expensive.
>
> OK, what do you have in your collection(s)?
My company used to write pen plotter drivers for the Mac, we still
sell the odd one. We used to get loads of pen plotters loaned to
us by the manufacturers, and we hung on to the manuals when
we could (which we usually managed). So I still have quite a
library of data on the command sets for the ones made from
the early 80s onward. If anyone wants any details I can probably
help somehow, just have to be sure I'm not going to be sued for
copyright infringement.
As for actual plotters (not my personal property though, just 44% mine):
HP DraftMaster MX Plus,
HP 7475A
Graphtec MP3200
What I would like to get my hands on is an HP 7550 in the UK.
I saw one last week on eBay in the US but shipping would be
too expensive.
Roger Holmes.
(Technical Director and 44% shareholding of Microspot Ltd)
Chuck Guzis wrote:
>Our job as citizens of the world is not to expect these tigers to
>change their stripes, but rather to make sure that their actions are
>kept in the bright light of public scrutiny. Attempts to hide under
>some notion of confidentiality or secrecy usually provide fertile
>ground for mischief and need to be resisted.
This quick statement summarizes in very elegant form, the foundations of
what government by the people and for the people should be all about.
I can't agree more. Problem is, the vast majority of folks exist either
in blissful ignorance; fear; or lack of resource/understanding to
challenge the status quo.
I generally stay away from making any political statements online, but
Chuck's great observation struck such a chord with me that I had to
respond.
Apologies for the lack of "on-topic" content. But, this stuff affects
us all.
Rick Bensene
The Old Calculator Web Museum
http://oldcalculatormuseum.com
On 13 Feb, 2007, at 18:02, cctalk-request at classiccmp.org wrote:
>
> I'm looking for a box or two of bog-standard 5081 punch cards.
> Besides
> Cardamation, is there anyone else who still has these?
I have some in the UK, so probably no good to you, and they are not
QUITE
the same as 5081, they are the same width and height but very
slightly thinner,
and marked up as 40 column mark sense cards, but my mainframe reads
and punches them fine, and my IBM keypunch used to punch them before
its drive belt broke. They are marked Kent County Council CDC 6998 & A.
I bought 110,000 of them back in the 70s, put them in my father's
Daimler
car and drove home. Next day my father backed the car out of the garage
and found I had broken the Panhard rod. Not noticeable going forwards
but going backwards the axle waggled from side to side and the rear
tyres
rubbed on the wheel spats (the Daimler V8-250 is a Jaguar Mk2 with a
2.5 Litre V8 Daimler engine in it).
By the way you didn't say if you wanted inner boxes of 2000 or outer
boxes of 10,000.
Roger Holmes, England.
> Once something winds up in a museum or someone's
> collection, you can consider it lost essentially.
With a few notable exceptions.
> I commented to him about something in the past, and
> got back a hate filled response from him and would never buy
> anything from this guy.
There is a VERY special place in Hell reserved for
"New Beginnings Antiques"
I would be very surprised if CHM doesn't have a copy
of this. I'll see what I can do about getting it scanned.
There's actually a few really nice looking older plotters on ebay at the
moment, two search examples will yield some really nice results....
HP X-Y
X-Y Plotter
The first will get some nice HP units including a pretty vintage one. The
second will get you some other interesting hits from Roland and Bausch &
Lomb.
Jay
> From: Grant Stockly <grant at stockly.com>format=flowed
>
> Has anyone here read this book by Edwin Black?
> http://www.amazon.com/IBM-Holocaust-Edwin-Black/dp/0751531995/sr=8-1/qid=11…
Yes, I too read the book and found it interesting. However judging by quite a
few comments from a google search, it appears that there might be a bias and
some inaccuracies in the book. Regardless, it does make for a rather interesting
read.
Hello cctalk at classiccmp.org<mailto:cctalk at classiccmp.org>
I am insterested in an answer to the following questions:
What is the dollar value of a HP 9845S Desktop Computer in good condition ? Also, the value of a 9895A Flexible Disc Memory unit with two 8 inch drives and a Controller POD with HPIB cable.
Send replies to: amaxwell800 at msn.com<mailto:amaxwell800 at msn.com>
If you would like to own one as well, then send me an email with your direct contact information.
Thank's . . . amaxwell800