I had some trouble with my email today and 20 messages were deleted. If
anybody on the list sent me any email and didn't receive a reply please
resend.
Tom Owad
--
Sysop of Caesarville Online
Client software at: <http://home.earthlink.net/~tomowad/>
< I'm just curious -- I always like to know more about how hardware works
< this case doesn't work). Could the drive have some sort of "intelligenc
< is trapping you? I put "intelligence" in quotes because these things ne
< actually intelligent.
No. it's a matter of media format. the FD55-B was designed for 40 track
two sided and works well for that. RX50 however is 80tracks 1 sided.
While the 1/2 side this is a us it or not thing the 40/80 track thing is
actually a mechanical design of the drive.
The FD55-b works for a lot of formats but DEC was always non-standard
with the rx50.
Allison
Here is a web page that lists auctions of former U.S. military equipment
(nothing *that* fancy, but there are CPUs, monitors, printers, copiers, etc in
there.) Lists by lots as well as by areas.
Here's the URL:
http://www.drms.com/
If anyone actually goes to one of these or wins a bid, let us know what you
get and/or what it's like, ok?
--
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
Larry Anderson - Sysop of Silicon Realms BBS (300-2400bd) (209) 754-1363
Visit my Commodore 8-Bit web page at:
http://www.goldrush.com/~foxnhare/commodore.html
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
http://web.mit.edu/w1mx/www/swapfest.html
The MIT Radio Society, in conjunction with the MIT UHF Repeater
Association, the MIT
Electronics Research Society, and the Harvard Wireless Club, sponsors a
Swapfest on the third Sunday of each month, April through October.
This is a place to buy, sell, and swap amateur radio, electronic, and
computer equipment. Hams and non-hams alike are welcome.
The Swapfest is held at MIT's Albany Street Garage at the corner of
Albany and Main Streets in Cambridge. The gate opens for buyers at 9am.
There is a small admission fee.
For more information, or if you'd like to purchase a seller's pass, call
(617) 253-3776 during business hours.
Someone I know has just acquired a motherboard, XT type aftermarket,
with 768k onboard ram. I'm fairly sure the system is going to need a
special driver to access the memory over DOS's 640k. Anyone have such an
animal and can attach it to email or know of a commercial program that
will handle the job?
--------------------------------------------------------------------
Russ Blakeman
RB Custom Services / Rt. 1 Box 62E / Harned, KY USA 40144
Phone: (502) 756-1749 Data/Fax:(502) 756-6991
Email: rhblake(a)bbtel.com or rhblake(a)bigfoot.com
Website: http://members.tripod.com/~RHBLAKE/
ICQ UIN #1714857
AOL Instant Messenger "RHBLAKEMAN"
* Parts/Service/Upgrades and more for MOST Computers*
--------------------------------------------------------------------
< I have a copy of version 2.10 which I suspect will do the trick ( can'
< find any reference to a version 2.11). I collect DOSae and would be
there was a 2.11 and it was common as it was the bugfix for 2.10 and
before. if it runs under 2.11 there is no reson it can't run under 3.3.
I can't imagine what an app might use that wasn't in 3.3!
Allison
< Anyway, what can I do with this thing? I don't have the boot images fo
< VMS, nor do I currently have a running VMS machine.
As form of informationand explanation. It's a terminal server for VAX
systems. The protocal it uses is LAT/RLAT. LAT is a local area
protocal for terminal and printing services. It's a low level protocal
and not generally routable.
< When I turn it on, the D1 light turns on, followed shortly by the D2
< light, and the D3 flashes when it's transmiting. And there's MOP packet
< on the ether, so I must assume it's in working order. Eventually, the D
< light starts flashing constantly and D4 starts flashing every half-minut
< or so.
good sign.
< I don't suppose there's any way to do IP, is there? One thing I was
Nope.
< suprised to see in there was the face of a big original package 68k. I
< might be interesting to write a custom boot image. :)
It was enough CPU for the task at that time (late 80s).
< In any case, does anyone have a copy of the boot image for when I get a
< VMS machine back to being functional again?
I'd have to look myself, I have one but never needed an extra 8 serial
lines.
Allison
try setver [dos version]
CL>Why not just run... What's that DOS program that fakes out apps to make
CL>them think they are running on another version of DOS? I'm drawing a blank
CL>here, but I did use it one time to make Windows 2.03 think it was running
CL>under DOS 3.3 when it was actually running on DOS 6.0. Worked great. The
CL>command is documented in the DOS help file, 5.0 and up, IIRC.
CL>At 01:00 AM 8/11/98 GMT, kyrrin(a)jps.net wrote:
CL>> Can anyone help this fellow obtain a most ancient version of DOS?
CL>>Please contact him directly if so.
CL>>
CL>> Thanks!
CL>>
CL>>-=-=- <snip> -=-=-
CL>>
CL>>On Mon, 10 Aug 1998 19:07:07 +0100, in comp.sys.ibm.pc.misc you wrote:
CL>>
CL>>>>From: Alun <AJB(a)alunbell.demon.co.uk>
CL>>>>Newsgroups: comp.sys.ibm.pc.misc
CL>>>>Subject: Dos v2.11
CL>>>>Date: Mon, 10 Aug 1998 19:07:07 +0100
CL>>>>Organization: None
CL>>>>Message-ID: <McHCtNALbzz1EwkT(a)alunbell.demon.co.uk>
CL>>>>NNTP-Posting-Host: alunbell.demon.co.uk
CL>>>>X-NNTP-Posting-Host: alunbell.demon.co.uk:158.152.226.160
CL>>>>X-Trace: news.demon.co.uk 902772436 nnrp-09:18077 NO-IDENT
CL>alunbell.demon.co.uk:158.152.226.160
CL>>>>X-Complaints-To: abuse(a)demon.net
CL>>>>MIME-Version: 1.0
CL>>>>X-Newsreader: Turnpike (32) Version 3.05 <zUgi5+4dx$uH8+eouyXlPLfuay>
CL>>>>Lines: 8
CL>>>>Path:
CL>blushng.jps.net!news.eli.net!news-out.internetmci.com!newsfeed.internetmci.c
CL>om!205.252.116.205!howland.erols.net!woodstock.news.demon.net!demon!news.dem
CL>on.co.uk!demon!alunbell.demon.co.uk!AJB
CL>>>>
CL>>>>Anyone got a copy? I'm happy to pay for it! I need it desperately to
CL>>>>rescue a customer whose PC2086 and software has died. They are a
CL>>>>veterinarians, and their drug labelling software only runs on this
CL>>>>version of DOS (seriously!). I'm rewriting it all, but there's thousand
CL>>>>of drugs to enter, and until I'm done, they really need their old
CL>>>>software to run on a spare machine.
CL>>>>--
CL>>>>Alun
CL>>
CL>>-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
CL>>Bruce Lane, Sysop, The Dragon's Cave (Fido 1:343/272)
CL>>http://table.jps.net/~kyrrin -- also kyrrin [A-t] Jps {D=o=t} Net
CL>>Spam is bad. Spam is theft of service. Spam wastes resources. Don't spam,
CL>period.
CL>>I am a WASHINGTON STATE resident. Spam charged $500.00 per incident per
CL>Chapter 19 RCW.
CL>>
CL>-
CL>- john higginbotham ____________________________
CL>- webmaster www.pntprinting.com -
CL>- limbo limbo.netpath.net -
Well, I got bored tonight and pulled out a DECserver 200/MC that somehow
ended up with many months ago. First thing was take a scredriver to it
(it was quite noisy and I figured I should probably figure out what the
obstruction was). Well, the obstruction was, well, dust. Although I'm
not writing this message to talk solely about dust, this was some
interesting stuff. From the looks of it either this thing had been
in/near a fire or it's administrator smoked at an unhealthy rate. Very
black and very plentiful. Also very difficult to remove (extremely fine).
Removing most of it made it quieter.
Anyway, what can I do with this thing? I don't have the boot images for
VMS, nor do I currently have a running VMS machine.
When I turn it on, the D1 light turns on, followed shortly by the D2
light, and the D3 flashes when it's transmiting. And there's MOP packets
on the ether, so I must assume it's in working order. Eventually, the D3
light starts flashing constantly and D4 starts flashing every half-minute
or so.
I don't suppose there's any way to do IP, is there? One thing I was
suprised to see in there was the face of a big original package 68k. It
might be interesting to write a custom boot image. :)
In any case, does anyone have a copy of the boot image for when I get a
VMS machine back to being functional again?
af
-------------------------------------------------------------------------------
Adam Fritzler |
afritz(a)delphid.ml.org | Animals who are not penguins can
afritz(a)iname.com | can only wish they were.
http://delphid.ml.org/~afritz/ | -- Chicago Reader
http://www.pst.com/ | 15 Oct 1982
-------------------------------------------------------------------------------
Can anyone help this fellow obtain a most ancient version of DOS?
Please contact him directly if so.
Thanks!
-=-=- <snip> -=-=-
On Mon, 10 Aug 1998 19:07:07 +0100, in comp.sys.ibm.pc.misc you wrote:
>>From: Alun <AJB(a)alunbell.demon.co.uk>
>>Newsgroups: comp.sys.ibm.pc.misc
>>Subject: Dos v2.11
>>Date: Mon, 10 Aug 1998 19:07:07 +0100
>>Organization: None
>>Message-ID: <McHCtNALbzz1EwkT(a)alunbell.demon.co.uk>
>>NNTP-Posting-Host: alunbell.demon.co.uk
>>X-NNTP-Posting-Host: alunbell.demon.co.uk:158.152.226.160
>>X-Trace: news.demon.co.uk 902772436 nnrp-09:18077 NO-IDENT alunbell.demon.co.uk:158.152.226.160
>>X-Complaints-To: abuse(a)demon.net
>>MIME-Version: 1.0
>>X-Newsreader: Turnpike (32) Version 3.05 <zUgi5+4dx$uH8+eouyXlPLfuay>
>>Lines: 8
>>Path: blushng.jps.net!news.eli.net!news-out.internetmci.com!newsfeed.internetmci.com!205.252.116.205!howland.erols.net!woodstock.news.demon.net!demon!news.demon.co.uk!demon!alunbell.demon.co.uk!AJB
>>
>>Anyone got a copy? I'm happy to pay for it! I need it desperately to
>>rescue a customer whose PC2086 and software has died. They are a
>>veterinarians, and their drug labelling software only runs on this
>>version of DOS (seriously!). I'm rewriting it all, but there's thousand
>>of drugs to enter, and until I'm done, they really need their old
>>software to run on a spare machine.
>>--
>>Alun
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Bruce Lane, Sysop, The Dragon's Cave (Fido 1:343/272)
http://table.jps.net/~kyrrin -- also kyrrin [A-t] Jps {D=o=t} Net
Spam is bad. Spam is theft of service. Spam wastes resources. Don't spam, period.
I am a WASHINGTON STATE resident. Spam charged $500.00 per incident per Chapter 19 RCW.
I thought I'd put out a warning about the Teac FD-55BV-16-U 5.25" floppy
drives. They seem to be totally unsuited for anything other than reading
MS-DOS floppies.
I bought one a couple months ago, for a project with my Amiga, since they
were what the developers of the Catweasel board recommended. Spent about
two days trying to get it to work. Finally I pulled the drive out of my
486 (an older Teac drive) and it worked immediatly. Assuming the Amiga
part of the equation was the problem I put the new drive in the 486.
Well, yesterday I needed to make archival images of some RX50's. No dice,
it absolutly would not read them. I'd picked up some older Teac's at the
last swap meet, so I got them out, and after two that only semi worked I
found one that works just fine, and was able to make my images, copy them
back to new floppies, and boot my PDP-11/73 off of them.
Note, I tried using the Teac FD-55BV-16-U drive with both 'putr' and
'teledisk'. Neather would work with it.
Zane
| Zane H. Healy | UNIX Systems Adminstrator |
| healyzh(a)ix.netcom.com (primary) | Linux Enthusiast |
| healyzh(a)holonet.net (alternate) | Classic Computer Collector |
+----------------------------------+----------------------------+
| Empire of the Petal Throne and Traveller Role Playing, |
| and Zane's Computer Museum. |
| http://www.dragonfire.net/~healyzh/ |
There's a person named Linus Ruth that needs pinout info for the 37 pin
nonstandard serial port on a CompuGraphics (typesetter type computer)
and if you can help this person please send email to
ruthrob(a)cyberhighway.net
--------------------------------------------------------------------
Russ Blakeman
RB Custom Services / Rt. 1 Box 62E / Harned, KY USA 40144
Phone: (502) 756-1749 Data/Fax:(502) 756-6991
Email: rhblake(a)bbtel.com or rhblake(a)bigfoot.com
Website: http://members.tripod.com/~RHBLAKE/
ICQ UIN #1714857
AOL Instant Messenger "RHBLAKEMAN"
* Parts/Service/Upgrades and more for MOST Computers*
--------------------------------------------------------------------
At 10:29 PM 8/10/98 -0500, Doug wrote:
>In the last episode of the continuing saga of my little almost-complete
>ET-3400, you might remember that I found the LEDs for it, but not the ROM
>chip. Of course, it turns out the ROM chip is pure unobtanium: a special
>mask-programmed MCM6830A. Luckily, I found that Heathkit was still in
>business, and still supported the ET-3400, so I ordered a ROM chip from
>them.
>
>They send me a 2716. Hmm, it's not pin-compatible, so no big surprise
>that it doesn't work. So, I called them up. "Oh, you need an adapter
>board for that old ET-3400, but we stopped making those things 15 years
>ago." It turns out that one of the techs there has the last adaptor board
>sitting in his desk drawer. Now the adapter board is mine!
>
Well, good work finding it!
>But it needs a buffer chip. The tech says "I think it needs a 74LS174".
>But that's not a buffer chip, and it's got the wrong number of pins (16
>instead of the 14 the socket has).
>
>I'm guessing it really needs something like a '242 or '243. Is there any
>way to know for sure without guessing? Am I going to blow anything up by
>trying the two chips above? Any other guesses?
>
Can you trace the circuit of the buffer chip to see at least what pins are
outputs to the 2716 (addresses) and what is from the 2716 to the adapter
(data lines)?
Another choice is a '125. A '242, '243 only have the data inverted from each
other, so if one's the correct chip, the other won't cause logic conflicts,
just wrong polarity signals.
-Dave
Well, thanks to the answers I got on my questions I've got a bit better of
an idea on how to proceed with getting the newly built from parts /23 up
and running, and I understand why I was having difficulties (as I thought,
the path through the backplane).
Since I'm using a RQDX3 for the drive controller, it sounds like my best
bet is to forget the RX50, and go straight to RX33 drives. However, based
on my taking an additional look at the RX50 drives I'll probably try to get
them up and running. What can I say, they're just too cool looking :^)
The QD614 board for emulating RL01/02's sounds pretty cool, to bad I don't
have the software for formating the attached drives.
Zane
| Zane H. Healy | UNIX Systems Adminstrator |
| healyzh(a)ix.netcom.com (primary) | Linux Enthusiast |
| healyzh(a)holonet.net (alternate) | Classic Computer Collector |
+----------------------------------+----------------------------+
| Empire of the Petal Throne and Traveller Role Playing, |
| and Zane's Computer Museum. |
| http://www.dragonfire.net/~healyzh/ |
Why not just run... What's that DOS program that fakes out apps to make
them think they are running on another version of DOS? I'm drawing a blank
here, but I did use it one time to make Windows 2.03 think it was running
under DOS 3.3 when it was actually running on DOS 6.0. Worked great. The
command is documented in the DOS help file, 5.0 and up, IIRC.
At 01:00 AM 8/11/98 GMT, kyrrin(a)jps.net wrote:
> Can anyone help this fellow obtain a most ancient version of DOS?
>Please contact him directly if so.
>
> Thanks!
>
>-=-=- <snip> -=-=-
>
>On Mon, 10 Aug 1998 19:07:07 +0100, in comp.sys.ibm.pc.misc you wrote:
>
>>>From: Alun <AJB(a)alunbell.demon.co.uk>
>>>Newsgroups: comp.sys.ibm.pc.misc
>>>Subject: Dos v2.11
>>>Date: Mon, 10 Aug 1998 19:07:07 +0100
>>>Organization: None
>>>Message-ID: <McHCtNALbzz1EwkT(a)alunbell.demon.co.uk>
>>>NNTP-Posting-Host: alunbell.demon.co.uk
>>>X-NNTP-Posting-Host: alunbell.demon.co.uk:158.152.226.160
>>>X-Trace: news.demon.co.uk 902772436 nnrp-09:18077 NO-IDENT
alunbell.demon.co.uk:158.152.226.160
>>>X-Complaints-To: abuse(a)demon.net
>>>MIME-Version: 1.0
>>>X-Newsreader: Turnpike (32) Version 3.05 <zUgi5+4dx$uH8+eouyXlPLfuay>
>>>Lines: 8
>>>Path:
blushng.jps.net!news.eli.net!news-out.internetmci.com!newsfeed.internetmci.c
om!205.252.116.205!howland.erols.net!woodstock.news.demon.net!demon!news.dem
on.co.uk!demon!alunbell.demon.co.uk!AJB
>>>
>>>Anyone got a copy? I'm happy to pay for it! I need it desperately to
>>>rescue a customer whose PC2086 and software has died. They are a
>>>veterinarians, and their drug labelling software only runs on this
>>>version of DOS (seriously!). I'm rewriting it all, but there's thousand
>>>of drugs to enter, and until I'm done, they really need their old
>>>software to run on a spare machine.
>>>--
>>>Alun
>
>-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
>Bruce Lane, Sysop, The Dragon's Cave (Fido 1:343/272)
>http://table.jps.net/~kyrrin -- also kyrrin [A-t] Jps {D=o=t} Net
>Spam is bad. Spam is theft of service. Spam wastes resources. Don't spam,
period.
>I am a WASHINGTON STATE resident. Spam charged $500.00 per incident per
Chapter 19 RCW.
>
-
- john higginbotham ____________________________
- webmaster www.pntprinting.com -
- limbo limbo.netpath.net -
While browsing I discovered that Chapter 9 of TAB book # 1183,
"Troubleshooting Microprocessors & Digital Logic" by Robert L. Goodman,
consists of about twenty five pages of schematics and troubleshooting hints
for the TRS80 Model 1.
I hope this is of interest.
Regards
Charlie Fox
No, that's NOT what I said, to make it easier to understand:
1. remove the round PC mount power socket from a dead 64 curcuitboard
2. remove the Plus/4's square power socket from the Plus/4 curcuitboard
3. solder in the 64 socket where the Plus/4 socket was (the pin locations are
the same)
Then plug in any 64 power supply to the Plus/4 and fire it up. Works like a champ!
> From: Russ Blakeman <rhblake(a)bbtel.com>
> Subject: Re: Plus/4 Power Supply
>
> I think the connectors are different. If I remember correctly it looks like a
> 128's square housing with s different pin setup. I'm pretty sure the voltages
> are the same though they are in different places.
>
> Maybe he can use the C64 power supply and splice his old connector to the end of
> it? He'd have to have the pinouts of both to do this though.
>
Really more work than is really worth it. The plus/4 supply is a black
Commodore 64 brick supply (the one with the bah-relief C= symbol) with a
square power connector, no major cosmetic difference.
since he wants the 'real thing' check out:
http://www.vintagecomputer.com/
where you will find these prices:
4. PLUS/4 WITH POWER SUPPLY.....18.95
5. PLUS/4 COMPUTER (KEYBOARD).....10.95
*** 6. PLUS/4 POWER SUPPLY.....10.95 ***
7. C16 WITH POWER SUPPLY.....24.95
8. C16 COMPUTER (KEYBOARD).....14.95
9. C16 POWER SUPPLY.....14.95
> Larry Anderson wrote:
>
> > You can use a Commodore 64 power supply on your plus/4 too!
> >
> > What you need to do is remove the power connector from a dead 64 motherboard
> > and solder it into where the the Plus/4's power connector is. Fortunately
> > they are both pin for pin compatible with each other. I have modified one
> > plus/4 in that way and haven't had a problem since. ;)
> >
> > Larry Anderson
--
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
Larry Anderson - Sysop of Silicon Realms BBS (300-2400bd) (209) 754-1363
Visit my Commodore 8-Bit web page at:
http://www.goldrush.com/~foxnhare/commodore.html
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
My apologies for posting this to the list.
Douglas Salot, please send me an email. I don't have your email address.
Tom Owad
--
Sysop of Caesarville Online
Client software at: <http://home.earthlink.net/~tomowad/>
>Sorry, I was totally confused when I posted that. One is an Apple ][
>Europlus (Eurostar is the train which goes under the sea to France :) and
>the other is a //e. They appear to have _totally_ different motherboards
>so I don't know if they are variants of the same beast or not. I know
>nothing about Apples prior to the Mac but am keen to learn - the
>attraction of this hobby to me is to play with things which I know nothing
>about.
The Eurplus is basically an Apple II+. Thus, the "plus" in its name.
Tom Owad
--
Sysop of Caesarville Online
Client software at: <http://home.earthlink.net/~tomowad/>
>> cards in them I suppose I will have to wait until I can scrounge one.
>
>I have 4million of those. Tell me I'm beautiful and I'll send you one.
You're weird
>
>Sam Alternate e-mail:
dastar(a)siconic.com
It's very likely that no commercial utility will work on this board, it
probably shipped with its own chipset-specific drivers.
There were some alternative drivers such as The Last Byte, but they worked
only on certain 286 chipsets (e.g. C&T)
Kai (for whom EMS was once a technical specialty, boy that brings back
painful memories)
-----Original Message-----
From: Russ Blakeman [mailto:rhblake@bbtel.com]
Sent: Monday, August 10, 1998 3:28 PM
To: Discussion re-collecting of classic computers
Subject: Re: EMS/XMS memory driver needed
Marvin wrote:
> Russ Blakeman wrote:
> >
> > Someone I know has just acquired a motherboard, XT type aftermarket,
> > with 768k onboard ram. I'm fairly sure the system is going to need a
> > special driver to access the memory over DOS's 640k. Anyone have such
> > an
> > animal and can attach it to email or know of a commercial program that
> > will handle the job?
>
> Quarterdeck used to offer a program called QRAM (IIRC) that would allow
> more than the 640K Ram to be used. I know it would work with 286
> computers, but don't know about XTs.
We'll try anythig until he gets it right. At one time this stuff was so
commonplace that even after years with it I forget what and where.
--
--------------------------------------------------------------------
Russ Blakeman
RB Custom Services / Rt. 1 Box 62E / Harned, KY USA 40144
Phone: (502) 756-1749 Data/Fax:(502) 756-6991
Email: rhblake(a)bbtel.com or rhblake(a)bigfoot.com
Website: http://members.tripod.com/~RHBLAKE/
ICQ UIN #1714857
AOL Instant Messenger "RHBLAKEMAN"
* Parts/Service/Upgrades and more for MOST Computers*
--------------------------------------------------------------------
With these beasts I was also given a centronics printer cable but there
seems to be nowhere to plug it in. Is this something which also needs an
interface card?
Regards
Pete
>Hi all,
>
>I'm moving soon, and want to get my old CoCo3, monitor, disk drive, and
more
>to a good home. I live in the Laurel, Maryland area, and the whole
>kit-and-kaboodle is yours for free -- all you have to do is email me at
>
>russett(a)russettweb.com.nospam
>
>(remove .nospam)
>
>to arrange the pick-up. The CoCo3 and monitor work great. I'm not sure if
>the disk controller is still working. I also have the old RS-232 interface
>cartridge, hi res joystick interface (I think I can find it), and two or
>three games to give away.
>
>Thanks,
>
>...Allen
>
>
>
>
The LISA (1) originally shipped with dual 5 1/4" floppy drives which
were nick-named twiggy drives. I don't have all the gory details but
Apple manufactured these drives and they were a disaster. All the
information you need can be found at Eric Smith's web site entitled
Twiggy Disk information:
www.brouhaha.com/~eric/retrocomputing/lisa/twiggy.html
Marty
______________________________ Reply Separator
_________________________________
Subject: Re: Lisa battery leakage??
Author: classiccmp(a)u.washington.edu at internet
Date: 8/10/98 3:36 PM
[Twiggy]
What's a twiggy?
-------
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Date: Mon, 10 Aug 1998 12:33:27 -0700
Reply-To: classiccmp(a)u.washington.edu
Sender: CLASSICCMP-owner(a)u.washington.edu
Precedence: bulk
From: "Daniel A. Seagraves" <DSEAGRAV(a)toad.xkl.com>
To: "Discussion re-collecting of classic computers"
<classiccmp(a)u.washington.edu>
Subject: Re: Lisa battery leakage??
In-Reply-To: <v04011710b1f3f04e4406(a)[207.220.32.133]>
X-Listprocessor-Version: 8.1 beta -- ListProcessor(tm) by CREN
>Hmmmm, now this sounds ponentially very cool! According to the Field
>Guide this is a "Dilog ST-506 emulation of four RL01/02". Any one have
>info on this, and will it work in a system that has actually RL02 drives
>attached? It would make it a lot easier to get data on to the Hard Drive
>if I can just copy it from a RL02 to a fake RL02.
They should work, but only if you set them up to run at an address
different from the standard address for RLseries disks.
>How well do Boards with Boot ROMs co-exist with systems with another set
>of Boot ROMs? I'm threatening to throw the DQ606 in the 11/23 that I'm
>working on, so I can access the rack of drives that go with the
>controller.
Depending on the boot rom, a standard address is 773000. You can't have
two sets of boards which respond the this address (and there isn't a
standard I am aware of for assigning alternate boot code to an address).
On systems which I have configured which had boot code on the controller
card, the standard boot code had to be disabled.
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry zk3.dec.com |
| Unix Support Engineering Group | (home): mbg world.std.com |
| Compaq Computer Corporation | addresses need '@' in place of ' ' |
| 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ |
| Nashua, NH 03062 | "pdp-11 programmer - some assembler |
| (603) 884 1055 | required." - mbg |
+--------------------------------+-------------------------------------+
I don't really trust the one RX-50 drive I've got, and I seem to recall
that it is possible to hook up a 1.2Mb floppy from a PC drive as 1/2 of a
RX-50 drive. Is there anything special that needs to be done, or do I just
plug it in?
Zane
| Zane H. Healy | UNIX Systems Adminstrator |
| healyzh(a)ix.netcom.com (primary) | Linux Enthusiast |
| healyzh(a)holonet.net (alternate) | Classic Computer Collector |
+----------------------------------+----------------------------+
| Empire of the Petal Throne and Traveller Role Playing, |
| and Zane's Computer Museum. |
| http://www.dragonfire.net/~healyzh/ |
Please pardon if this has already been answered... I've been away for
a week at the Worldcon (world science fiction convention)
>I have a really compact "PDP-11/23S" chassis that has an 18-bit Q-Bus
>backplane (4xQuad) in it. Although the circuitry for the Q-Bus is on
>traces of a PC card, there are also wirewrap pins extending out from
>the backplane. Am I naive to assume that I can convert this to a
>22-bit Q-Bus by wirewrapping four or so lines? Any pointers on how to
>do this or on technique?
Not naive at all... I've done it on at least one of my H9270 backplanes
at home... I know of many others who have as well. If I remember
correctly, you need to buss the BC-BF lines (and for Q-Q backplanes,
DC-DF), but I would have to verify this...
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry zk3.dec.com |
| Unix Support Engineering Group | (home): mbg world.std.com |
| Compaq Computer Corporation | addresses need '@' in place of ' ' |
| 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ |
| Nashua, NH 03062 | "pdp-11 programmer - some assembler |
| (603) 884 1055 | required." - mbg |
+--------------------------------+-------------------------------------+
On Aug 10, 6:42, Ethan Dicks wrote:
> Subject: Re: DQ614 and other Q-Bus questions
> On Sun Aug 9, 15:20, Zane H. Healy <healyzh(a)ix.netcom.com> wrote:
> > Hmmmm, now this sounds ponentially very cool! According to the Field
Guide
> > this is a "Dilog ST-506 emulation of four RL01/02".
Yes, it is. I think I might have been responsible for that highly
informative entry ;-)
> > Any one have info on
> > this, and will it work in a system that has actually RL02 drives
attached?
> > It would make it a lot easier to get data on to the Hard Drive if I can
> > just copy it from a RL02 to a fake RL02.
>
> Presuming that it can be strapped at the alternate address (DLB0 on a
uVAX,
> for example. Dunno the CSR), it should work fine.
It needs a different PROM to switch the address/vector. The standard PROM
at U38 is labelled 91265D (according to my old notes) and the
alternate-address PROM is labelled 91578A (old notes again). YMMV :-)
> > What kind of Hard Drives will work with it?
>
> The one I have used to have a Rodime 10 Mb 5.25" full-height MFM drive
> attached to it. I'd love to hear if an ST-251 would work.
Again, it should. It should be capable of using up to two ST-412 interface
drives to emulate up to four RL02s, though I never tried mine with more
than one. IIRC there's a small overhead, so you need slightly more than
20MB to emulate two drives.
> > Is there any kind of setup for it? There is a funky 20-pin connecter
> > marked J3 that might be for jumpers or a ribbon cable though I don't
really
> > want to try to attach a ribbon cable to it, as it's rather wierdly
attached.
>
> It's an ST-506 interface - 20 pin for analog data (one per drive, up to 4
> supported, depending on the exact nature of the controller in question),
> and 34 pin (digital signals) for control (one per controller, including
> up to 4 drive select wires).
Two physical drives, in this case.
> > Does it have any kind of boot ROMs?
>
> Almost certainly not. It is a register-level emulation of the RLV11 or
RLV12
> (don't know which one). It would use the regular DL boot ROM on your
system.
It does have a bootstrap, but I think the emulation is RLV11 (it's to old
to be RLV12, I think). You can switch the bootstrap off, though. The code
will boot either a DY or DL device.
> > Any idea on how well it would co-exist with a DQ606?
>
> No idea.
Me neither. I don't have the full docs, just a pair of layout diagrams,
switch table, and a few bits about formatting. Unfortnately, all the
formatting stuff seems to use a program which I don't think I have handy.
At the back end of the board is either a 34+20 pin connector, or two
individual headers. As Ethan said, the 34-way is the control bus
(daisy-chained like floppies for multiple drives) and the 20-way is the
data. J3 is the second 20-pin data connector (for the second physical
drive). Pin 1 of the 34-way connector is the end nearest the LED, and the
other connectors are fitted in the same orientation.
There are five switches:
S1 ON = ECC used to transparently correct errors where possible
OFF = ECC ignored; used for diagnostics
S2 ON = bootstrap enabled
OFF = bootstrap disabled
S3,S4 Identify the last logical RL unit on physical drive 0. So
the settings are as follows:
S3 S4 Physical 0 Physical 1
off off DL0 Dl1, DL2, DL3
off on DL0, DL1 DL2, DL3
on off DL0, DL1, DL2 DL3
on on DL0, DL1, DL2, DL3
S5 ON = use secondary address for bootstrap ROM: 175000
OFF = use primary address for bootstrap ROM: 173000
Factory setting is all switches off.
There are 10 jumpers:
JP1 (near U22) removed (etch cut) allows data loopback for diagnostics.
JP2 (near U32) removed (etch cut) aborts controller pre-comp logic when
writing, for diagnostics.
JP3,4,5 (near U70) sets interrupt levels:
level JP3 JP4 JP5
4 B-C B-C B-C
5 B-C B-C A-B
6 B-C A-B B-C
7 A-B A-B B-C
JP6 (near U22) "Must be removed"
JP7 (near U22) "Must be removed"
JP8 (near U5) "Must be removed"
JP9 (near U32) "Must be installed"
JP (near U32) "A-B must be installed, A-C must be removed"
There's also a socket for a special (customer) bootstrap at U38.
That's about all I can tell you, I'm afraid. I'll have a look for a copy
of the formatting program (which came on an RT11 floppy, I think) but I'm
not hopeful... I don't have the controller any longer.
--
Pete Peter Turnbull
Dept. of Computer Science
University of York
Good Lord... all of a sudden, they're popping up all over the place.
Contact this fellow directly if you'd like an 11/44.
-=-=- <snip> -=-=-
On Mon, 10 Aug 1998 12:16:38 GMT, in comp.sys.dec you wrote:
>>Message-ID: <35CE15E2.7E89(a)tessellabs.com>
>>From: Asa Wilson <awilson(a)tessellabs.com>
>>Reply-To: awilson(a)tessellabs.com
>>Organization: TesselLabs
>>X-Mailer: Mozilla 3.01C-KIT (Win95; U)
>>MIME-Version: 1.0
>>Newsgroups: comp.sys.dec
>>Subject: PDP 11/44 system available
>>Content-Type: text/plain; charset=us-ascii
>>Content-Transfer-Encoding: 7bit
>>Lines: 6
>>Date: Mon, 10 Aug 1998 12:16:38 GMT
>>NNTP-Posting-Host: 209.74.130.98
>>NNTP-Posting-Date: Mon, 10 Aug 1998 07:16:38 CDT
>>Path: blushng.jps.net!news.eli.net!uunet!uunet!in1.uu.net!pulsar.dimensional.com!dimensional.com!news1.i1.net!not-for-mail
>>
>>I am trying to dispose of a complete PDP 11/44 system. A flyer
>>describing the system can be viewed at http://tessellabs.com/decflyrf.
>>
>>Asa Wilson
>>
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Bruce Lane, Sysop, The Dragon's Cave (Fido 1:343/272)
http://table.jps.net/~kyrrin -- also kyrrin [A-t] Jps {D=o=t} Net
Spam is bad. Spam is theft of service. Spam wastes resources. Don't spam, period.
I am a WASHINGTON STATE resident. Spam charged $500.00 per incident per Chapter 19 RCW.
Allison,
I'll be there too. Maybe we can talk about S-100 cards then. :)
Tony
> -----Original Message-----
> From: allisonp(a)world.std.com [mailto:allisonp@world.std.com]
> Sent: Monday, August 10, 1998 9:09 AM
> To: Discussion re-collecting of classic computers
> Subject: MIT flea,
>
>
> I plan to be at the MIT FLEA sunday the 16th, with loads of
> goodies for
> older systems and a stack of vax 3100s.
>
> Also over the weekend I scored a pair of compupro boxes one
> with 8085/8088
> and the other 68000 based.
>
> Also a heath HW207 8" disk (dual drive)
> pragmatic designs 20mb sa4000 style disk
> Hard disks mfm
> software, software, software and manuals.
> enough Compupro boards to build another three systems
> A few intergrand disk boxen
> some DD DS 8" drives
> 8" 2S Media!
> A few Telvideo 9xx series terminals.
>
> If people need DOCs for compupro boards (ANY!!!) I have docs for them
> and a few others.
>
> Also I have a line on a ANADEX wide platen (15") printer that has
> serial/parallel interface. I have to many already. It's a
> nice one if
> you need something that takes wide paper. Not shipable (cheaply that
> is, as it would have to be crated to assure "arrive alive".)
> It's not
> that heavy but large.
>
> Allison
>
< To be honest, I think that programming a SLIP interface would be a
< complete waste of time. No service providers I know of allow SLIP
< connections anymore. PPP would be the better choice.
Please, dont say that... all my net access is using slip (actaully slirp).
Allison
< We have heard that the 680 was a failure
< because the 16k memory card for it cost more than
< the computer. Take a look at this list and you
It was a failure because MITS as per their style had a nifty box that
not SS50. By that time SWTP and others had accepted SS50 as the bus for
6800 and later 6809 systems.
The 680 however was without question industrial strength but it's bus
was totally unique to the 680, that type of this was VERY unpopular
concept back then.
Allison
I saw a Tandy 1000 HX at a local once a year flea market friday and was
wondering if the expansion cards it uses (non-standard) are hard to come
by. I'd like to get it and use it as a dial-in terminal with either a 300
or 1200 baud modem, whatever is available. This is one of the one-piece
1000s, and there's no RS-232 port, or DIN serial port connector on it, just
joysticks, ext. floppy, and printer connector, the last two are edge-type
connectors.
Maybe I'll pick it up tomorrow. I love these yearly Hospice Flea Markets:
Everything starts off at full price, Friday and Saturday. Sunday, all the
prices drop by 50%, Monday, you give them a few bucks, and they'll let you
cart off anything that is left. I hope the tradition still stands this
year. I saw a Timex Sinclair 1000 (black, mebrane keyboard) along with some
cassettes and mem expansion boxes for $5.00. If it's still there, I might
pick it up if someone wants it. (What?!? He's not putting it on ebay to get
$500.00 bucks for it? Is he crazy???) Yes I are!
-
- john higginbotham ____________________________
- webmaster www.pntprinting.com -
- limbo limbo.netpath.net -
I plan to be at the MIT FLEA sunday the 16th, with loads of goodies for
older systems and a stack of vax 3100s.
Also over the weekend I scored a pair of compupro boxes one with 8085/8088
and the other 68000 based.
Also a heath HW207 8" disk (dual drive)
pragmatic designs 20mb sa4000 style disk
Hard disks mfm
software, software, software and manuals.
enough Compupro boards to build another three systems
A few intergrand disk boxen
some DD DS 8" drives
8" 2S Media!
A few Telvideo 9xx series terminals.
If people need DOCs for compupro boards (ANY!!!) I have docs for them
and a few others.
Also I have a line on a ANADEX wide platen (15") printer that has
serial/parallel interface. I have to many already. It's a nice one if
you need something that takes wide paper. Not shipable (cheaply that
is, as it would have to be crated to assure "arrive alive".) It's not
that heavy but large.
Allison
No, I'm not talking about Ebay prices.
Instead I thought you might be interested
in seeing an original Altair Price list
>from July,1976. Here's the link to a jpeg of it...
http://home.att.net/~rwood54741/25.jpg
We have heard that the 680 was a failure
because the 16k memory card for it cost more than
the computer. Take a look at this list and you
will see it in black and white. The 680 computer kit
cost $466 ($625 assembled). The 16K memory card cost
a staggering $685 as a kit and $865 assembled. That
is a whopping $43 per 1k of memory.
Bob Wood
______________________________________________________
Get Your Private, Free Email at http://www.hotmail.com
At 02:13 AM 8/7/98 -0500, you wrote:
>With all of the billionaires overbidding on ebay, Altairs are coming out
>of the woodwork! This should be interesting. Two are for sale (one from
>our own jimw), both have a "reserve", and one has a starting bid of $2500
>which has already been met!
They don't call it E-Pay for nothing!
Joe
Hmmmm, now this sounds ponentially very cool! According to the Field Guide
this is a "Dilog ST-506 emulation of four RL01/02". Any one have info on
this, and will it work in a system that has actually RL02 drives attached?
It would make it a lot easier to get data on to the Hard Drive if I can
just copy it from a RL02 to a fake RL02.
What kind of Hard Drives will work with it?
Is there any kind of setup for it? There is a funky 20-pin connecter
marked J3 that might be for jumpers or a ribbon cable though I don't really
want to try to attach a ribbon cable to it, as it's rather wierdly attached.
Does it have any kind of boot ROMs? Any idea on how well it would co-exist
with a DQ606?
How well do Boards with Boot ROMs co-exist with systems with another set of
Boot ROMs? I'm threatening to throw the DQ606 in the 11/23 that I'm
working on, so I can access the rack of drives that go with the controller.
Well, I'm off to work on archiving some RX-50 floppies prior to actually
trying to use them. Hopefully they're readable! So this should be a break
in my steady stream of questions :^)
Zane
| Zane H. Healy | UNIX Systems Adminstrator |
| healyzh(a)ix.netcom.com (primary) | Linux Enthusiast |
| healyzh(a)holonet.net (alternate) | Classic Computer Collector |
+----------------------------------+----------------------------+
| Empire of the Petal Throne and Traveller Role Playing, |
| and Zane's Computer Museum. |
| http://www.dragonfire.net/~healyzh/ |
At 08:46 PM 8/9/98 -0700, Sam Ismail wrote:
>Yeah, its still pretty contemporary in fact. MKS is still alive and
>kicking as far as I know. Did you do a web search?
Uhh, what's the web??? :) Didn't think about doing a search, because of the
age of the disks (1990). Will see what I find.
-
- john higginbotham ____________________________
- webmaster www.pntprinting.com -
- limbo limbo.netpath.net -
Looking for some manuals for MKS Toolkit.
It was a set of Unix utils packaged with a Korn shell that all ran under
it's own command shell.
Anyone ever hear of it?
-
- john higginbotham ____________________________
- webmaster www.pntprinting.com -
- limbo limbo.netpath.net -
Sometimes I see an EMM.SYS file on older DOS disks, but I can't recall
which DOS disks. (Maybe IBM, or DR, or something else...
At 08:21 PM 8/9/98 -0500, Russ Blakeman wrote:
>Someone I know has just acquired a motherboard, XT type aftermarket,
>with 768k onboard ram. I'm fairly sure the system is going to need a
>special driver to access the memory over DOS's 640k. Anyone have such an
>animal and can attach it to email or know of a commercial program that
>will handle the job?
>
> --------------------------------------------------------------------
> Russ Blakeman
> RB Custom Services / Rt. 1 Box 62E / Harned, KY USA 40144
> Phone: (502) 756-1749 Data/Fax:(502) 756-6991
> Email: rhblake(a)bbtel.com or rhblake(a)bigfoot.com
> Website: http://members.tripod.com/~RHBLAKE/
> ICQ UIN #1714857
> AOL Instant Messenger "RHBLAKEMAN"
> * Parts/Service/Upgrades and more for MOST Computers*
> --------------------------------------------------------------------
>
>
-
- john higginbotham ____________________________
- webmaster www.pntprinting.com -
- limbo limbo.netpath.net -
If anyone has that driver could they send it to me, too? I have a Tandy
1000TL 286 XT w/768K RAM, and no way to access it. Maybe the driver will
work in it, too. Maybe it won't - but it's worth a shot :-)
--
-Jason
(roblwill(a)usaor.net)
ICQ#-1730318
----------
> From: Russ Blakeman <rhblake(a)bbtel.com>
> To: Discussion re-collecting of classic computers
<classiccmp(a)u.washington.edu>
> Subject: EMS/XMS memory driver needed
> Date: Sunday, August 09, 1998 9:21 PM
>
> Someone I know has just acquired a motherboard, XT type aftermarket,
> with 768k onboard ram. I'm fairly sure the system is going to need a
> special driver to access the memory over DOS's 640k. Anyone have such an
> animal and can attach it to email or know of a commercial program that
> will handle the job?
>
> --------------------------------------------------------------------
> Russ Blakeman
> RB Custom Services / Rt. 1 Box 62E / Harned, KY USA 40144
> Phone: (502) 756-1749 Data/Fax:(502) 756-6991
> Email: rhblake(a)bbtel.com or rhblake(a)bigfoot.com
> Website: http://members.tripod.com/~RHBLAKE/
> ICQ UIN #1714857
> AOL Instant Messenger "RHBLAKEMAN"
> * Parts/Service/Upgrades and more for MOST Computers*
> --------------------------------------------------------------------
>
>
OK, gang, last chance! I have a pair of printwheels compatible with either
the Diablo/Xerox 635 series printers or the Xerox 60 series MemoryWriters.
They are NOT compatible with the MemoryWriter 600 series.
I have one each, Courier 10 and Courier 12. Whoever wants them, they're
yours for the cost of postage ($3.00 USPS Priority Mail).
Let me know. If I don't hear anything by Tuesday night this week (the
11th), they're going in the trash.
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Bruce Lane, Sysop, The Dragon's Cave BBS (Fidonet 1:343/272)
(Hamateur: WD6EOS) (E-mail: kyrrin(a)jps.net)
"Our science can only describe an object, event, or living thing in our own
human terms. It cannot, in any way, define any of them..."
> From: "Daniel A. Seagraves" <DSEAGRAV(a)toad.xkl.com>
> To: classiccmp(a)u.washington.edu
> Subject: Macintosh SE questions.
> Message-ID: <13377942863.8.DSEAGRAV(a)toad.xkl.com>
>
> I got the SE to go. Now, I need to get the SCSI harddisk I have
> to work for it. It has a (limited) version of System 6.0.8, and I have
> a 200 meg SCSI external I plan on using.
> How do I get the Mac to initialize the SCSI disk? (I can worry about
> System 7 later...)
There is a program called Apple Drive Setup SC or something to that effect
which will format and prep 'apple' hard drives. (they rigged it so if the
drive does not have an apple ROM it won't format it) but there are ways around
that, check out:
http://www.euronet.nl/users/ernstoud/scsi.html
> Also, it has an 800k disk... Is there any way to cheat and make a PC produce
> these? Or will the Mac take 720k disks too?
Neither the Mac 800k format is done with a variable speed drive and is
practically impossible to emulate in software (PC users can get around this by
adding a Copy II PC option Board which bypasses the drive's controller for
better flexibility.)
My suggestion is to see if you can get a set of SE Superdrive ROMs and a 1.4HD
drive for your SE then you can use 1.44 meg disks which CAN be read on a PC
(Via MacChette) and also can read PC disks on the Mac (Via Apple File
Exchange). :)
> (I can make a Mac-formatted 720k disk with hfstools... But I can't format
> the SCSI disk with it - no SCSI controller in the PC.)
--
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
Larry Anderson - Sysop of Silicon Realms BBS (300-2400bd) (209) 754-1363
Visit my Commodore 8-Bit web page at:
http://www.goldrush.com/~foxnhare/commodore.html
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
< > Came back with one other interesting item.
< > I never knew there was such a thing as a
< > 5.25 inch MITS Altair floppy drive. But here
< > it is...
<
< Hmm...why not? I've read that the iCom floppy disk controller
< was the first 5.25" disk controller for S-100. Not sure if
< that's true though.
It was the ICOM via pertec purchase and integrated into the altair line.
Allison
This is probably not a 10yr thing, but I don't know any other list that's
got this many people that know what they're talking about...
I've got a Wyse WY-50 terminal. From the menus, it's got four modes:
FDX, BLOCK, HDX, H-BLK
After reading (on this list) that the old HP terminals had something
called "block mode", I was wondering what it meant here. Also, what's FDX
and HDX? The first thing that came to my mind was Full Duplex and Half
Duplex, but I don't know how those would apply.
Also, are these terminals just really lacking features or are Linux and
*BSD just not running it right? It seems that tabs get ignored, for one.
And it is just generally awkward looking. (And the arrow keys don't work
in pine, but that's not terribly critical.) It doesn't act in a logical
way at times.
What were these terminals meant to be used with? I got this one from a
AS/400 installation, though I don't know if it was ever actually used for
the AS/400 (they had a whole mess of IBM twin-ax terminals for that).
af
-------------------------------------------------------------------------------
Adam Fritzler |
afritz(a)delphid.ml.org | Animals who are not penguins can
afritz(a)iname.com | can only wish they were.
http://delphid.ml.org/~afritz/ | -- Chicago Reader
http://www.pst.com/ | 15 Oct 1982
-------------------------------------------------------------------------------
Hi Again,
The Sun currently has 2x Fujitsu M2322K drives which appear to be SMD
interface drives (on a xylogics 451 controller), is there any way to
interface ohter kinds of drives into this interface?
Also, I spotted an Apple IIGS for sale in a second-hand place down here,
it looked complete but it was labelled "parts only". I asked why and the
response was "It doesn't have a startup card", I assume this means disk.
They want AUS$60 for it, I was thinking about offering them AUS$30, is
this reasonable?
Cheers
Karl
------------------------------------------------------------------------------
Karl Maftoum
Computer Engineering student at the University of Canberra, Australia
Email: k.maftoum(a)student.canberra.edu.au
> From: "PG Manney" <manney(a)lrbcg.com>
> Subject: Wanted: Commodore Plus/4 Power Supply
>
> Will trade for ??? Have lots of Commodore and PC stuff, some Apple.
>
> manney(a)lrbcg.com
You can use a Commodore 64 power supply on your plus/4 too!
What you need to do is remove the power connector from a dead 64 motherboard
and solder it into where the the Plus/4's power connector is. Fortunately
they are both pin for pin compatible with each other. I have modified one
plus/4 in that way and haven't had a problem since. ;)
Larry Anderson
--
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
Larry Anderson - Sysop of Silicon Realms BBS (300-2400bd) (209) 754-1363
Visit my Commodore 8-Bit web page at:
http://www.goldrush.com/~foxnhare/commodore.html
-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-
