Does anyone know if the U-Max or the V2000 were marketed in the US? I've
never seen (or even heard of) anything like it. Does anyone know how much
one might cost if I could find one?
I like working with the older video equipment (mainly because I can fix the
stuff) My only VCR is an 80's top-loading GE, complete with _wired_ remote
:). The only reason that I bought the JVC VHS-C camera was because the
heads went bad in my old camera (the kind with the separate camera that
plugged into the 'VCR' that hung from a shoulder strap).
///--->>>
-Jason Willgruber
(roblwill(a)usaor.net)
ICQ#: 1730318
<http://members.tripod.com/general_1>
-----Original Message-----
From: Tony Duell <ard(a)p850ug1.demon.co.uk>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Thursday, July 15, 1999 8:09 PM
Subject: Re: Video standards (was Re: digital cameras)
>>
>> On Thu, 15 Jul 1999, Hans Franke wrote:
>> >In fact, this is also why I don't like VHS - maybe good
>> >enough compared to a noisy aired NTSC source, but just
>> >crap, compared to an U-Max or V2000 (I still use V2000
>> >tape machines - still equal to any S-VHS stuff after more
>> >than 10 years of development ...). And of course the same
>> >for DVD vs. Laserdisk.
>>
>> What is U-Max and V2000? I know what a Laserdisk player is, but I wasn't
>
>U-max is possibly what we call U-matic, a Sony semi-professional video
>system. I don't know any more as I've not obtained a machine (yet!).
>
>V2000 is/was a Philips (machines were also made by Grundig, but AFIAK the
>standard was Philips) system. It was beautiful. For one thing tapes could
>be turned over like audio cassettes. For another there was no control
>track amd no tracking control. The video heads were mounted on
>piezo-actuators and a fairly complex servo system caused them to follow
>the video tracks on the tape, based on signals recorded on said tracks.
>Since the heads can follow the tracks no matter what speed (within
>reason) the tape is running at, you can have noise-free slow motion, fast
>motion, still frame, etc.
>
>I can't remember the bandwidth, but I think it was better than normal VHS
>(although probably not better than S-VHS).
>
>I have a pair of VR2022's (one UK-PAL, one SECAM) awaiting some bench
>space. They look interesting to work on - mechanically there's almost
>nothing - no belts, no idler, no mode switch, no back-tension band,etc.
>Just 5 motors (one for each spool, one forthe capstan, one for the video
>head, one for the loading mechanism), a few optoswtiches, a couple of
>microswitches, and not a lot else. Backtension, for example, is provided
>by applying a small current to the rwwind motor - something that's a lot
>simpler/more reliable than the VHS-style tension band
>
>But it makes up for that simplicity in the electronics. There's a
>dozen-or-so plug-in cards, 4 or 5 of them for the various servos. 2
>microcontrollers (at a time when microcontrollers were not common in
>consumer stuff). Looks possible to repair, though, and I have the manual.
>
>-tony
>
>
Well, this must be a stock number. My old AMD and National books, both of
which have cross-references, which is why I still have them, don't have the
number, nor does my '86 or '78 IC master.
Looks like you've got your work cut out for you!
Dick
-----Original Message-----
From: James Willing [SMTP:jimw@agora.rdrop.com]
Sent: Friday, July 16, 1999 8:47 AM
To: Discussion re-collecting of classic computers
Subject: RE: Help ID this RAM chip?
On Fri, 16 Jul 1999, Richard Erlacher wrote:
> Some indication as to which mfg might have made it would be helpful. The
> number of package pins would help too. It could be a National part with
> the prefix, though AMD used a set in that range also. If they're
18-pins,
> they might be non-multiplexed dynamic rams, and if they're 16-pin 5980's
> they might be 4k DRAMs ala 4027, with the terminal 4 meaning 450 ns
access
> cycle, i.e. 250ns access time + 200 ns RAS precharge.
AMD logo, 16 pins...
-jim
---
jimw(a)computergarage.org
The Computer Garage - http://www.computergarage.org
Computer Garage Fax - (503) 646-0174
>>> Coming soon to www.computergarage.org - the CBBS/NW on-line archives
>>> Coming to VCF III (2-3 October 1999) - CBBS/NW live!
Anyone know of a really cheap source for a small VME chassis with power?
Anyone happen to have something like this they may want to sell?
Thanks!
Ryan Brooks
ryan(a)inc.net
Hi Lawrence:
Purged your message, so lost your email address.
The M7856 is a Unibus card, a DL11-W serial communications board. Some
had a realtime clock on them too. From the DEC Field Guide:
M7856 DL11-W U SLU & realtime clock option
M7856-YA DL11-W U M7856 with 110 to 19.2-Kbaud option
Kevin
--
Kevin McQuiggin VE7ZD
mcquiggi(a)sfu.ca
Hi,
I recently acquired a VAX 11/750 with a bad power supply (sigh)...
Does anyone have schematics for the power supply (H7104-C) they would
be willing to loan/sell/give to me? I have a schematics for several
other parts that I can loan/trade for them (including the CPU boards).
Alternatly, does someone have a part number list for the 750
documentation? I have pulled what I can off of DAS, but it is pretty
slim pickings.
Finally, I am considering purchasing the MDS set on microfiche, but
I DEC isn't able to supply me with any information on what is in it,
specifically whether or not the documentation for the 11/750 that
they don't currently sell (as hardcopy) is in it or not. Or possibly
the PDP fiche set.
Anyone have suggestions? Someone posted a while ago they had a list
of documents from DEC labelled 'internal use only', could you see if
there is a part number for a 750 printset in it?
Thanks,
clint
PS I am putting together a list of spare boards/documents. Anyone want
a set of VT100 printsets?
Some indication as to which mfg might have made it would be helpful. The
number of package pins would help too. It could be a National part with
the prefix, though AMD used a set in that range also. If they're 18-pins,
they might be non-multiplexed dynamic rams, and if they're 16-pin 5980's
they might be 4k DRAMs ala 4027, with the terminal 4 meaning 450 ns access
cycle, i.e. 250ns access time + 200 ns RAS precharge.
Dick
-----Original Message-----
From: James Willing [SMTP:jimw@agora.rdrop.com]
Sent: Thursday, July 15, 1999 11:54 AM
To: Discussion re-collecting of classic computers
Subject: Help ID this RAM chip?
Have a bad one in an OMNIbus memory card. DS9804PC Got to love some of
these numbers...?
Figures as a 1Kx1 static(?) RAM part, but I have not been able to cross
reference it in the couple of closest books I have at hand. Anyone have
any clues on this one? (before I have to start signal chasing?)
-jim
---
jimw(a)computergarage.org
The Computer Garage - http://www.computergarage.org
Computer Garage Fax - (503) 646-0174
>>> Coming soon to www.computergarage.org - the CBBS/NW on-line archives
>>> Coming to VCF III (2-3 October 1999) - CBBS/NW live!
>Someone tell me theres a different Smithsonian museum than the famous
>one... maybe some other guy named Smithsonian, or something...
>
>Anyways, i'm looking at these photos from the smithsonian computers, and
>I say, hey! At least theres ONE real valuable and significant computer
>on display... and then i scroll down and the description (written
>by someone at the U of California Davis computer museum no doubt) is
>"some beige computer with a big ol' screen"...
>
>Eghads!
>
>Heres the web page:
>
> http://wwwcsif.cs.ucdavis.edu/~csclub/museum/items/smithsonian_overview.html
>
>Sigh.
Keep in mind that you *aren't* looking at the Smithsonian's description
of the computers, you're looking at what some student in the CD department
at UC Davis thought the computers were, probably a month after he
visited the Smithsonian and took the pictures.
Incidentally, the last "some other computer" mentioned on the web page
is Jerry Pournelle's "Zeke", with two 8" Qume drives and a Godbout
S-100 mainframe.
--
Tim Shoppa Email: shoppa(a)trailing-edge.com
Trailing Edge Technology WWW: http://www.trailing-edge.com/
7328 Bradley Blvd Voice: 301-767-5917
Bethesda, MD, USA 20817 Fax: 301-767-5927
"The Ref" ( http://theref.aquascape.com/hard_drives/mh__main.html ) usually
has all this info but not for this model. Must be a Compaq OEM, which could
spell problems.
-----Original Message-----
From: Russ Blakeman <rhblake(a)nospam.bigfoot.com>
To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
Date: Friday, 16 July 1999 21:21
Subject: COnner specs
>Need the specs (hds, cyls, spt, capacity) for a conner CP-3541, a Compaq
>hard drive. It's an IDE drive, 3.5" and I believe it's a type 61 or 65
>for a Compaq machine. I plan on using it in another deserving machine.
>
>--
>Russ Blakeman
>Clarkson, Ky USA
>
>Remove "nospam.' in email address to reply
>
>
Need the specs (hds, cyls, spt, capacity) for a conner CP-3541, a Compaq
hard drive. It's an IDE drive, 3.5" and I believe it's a type 61 or 65
for a Compaq machine. I plan on using it in another deserving machine.
--
Russ Blakeman
Clarkson, Ky USA
Remove "nospam.' in email address to reply
Someone tell me theres a different Smithsonian museum than the famous
one... maybe some other guy named Smithsonian, or something...
Anyways, i'm looking at these photos from the smithsonian computers, and
I say, hey! At least theres ONE real valuable and significant computer
on display... and then i scroll down and the description (written
by someone at the U of California Davis computer museum no doubt) is
"some beige computer with a big ol' screen"...
Eghads!
Heres the web page:
http://wwwcsif.cs.ucdavis.edu/~csclub/museum/items/smithsonian_overview.html
Sigh.
-Lawrence LeMay
lemay(a)cs.umn.edu
PS: They couldnt figure it out from the famous logo on the front???
PPS: and "some grey computer" ????
PPPS: SOME GREY COMPUTER?
