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Commodore 8296 Computer

by billdeg
Total messages in this thread: 9
Updated: [ 8+V Out from pwr supply bad ] 02/05/2012
OEM Commodore? "Malvern Particle Sizer" http://www.vin...alvern_8296/ Initial inspection of unit - does not work. 1. Monitor electronics loose 2. Made in England but US electric compat. 3. Took off monitor, unplugged from base unit. 4. The power was disconnected, board detached from monitor. I re-attached, no screen output. 5. Disk drive gave familiar long blink/2 short blinks of a IEEE drive with a good controller. Internal cable IEEE. 6. The P/N of the drive controller is 251203 REV B 1983. (This is the sfd-1001 I have been told...) 7. Motherboard: "80/40 column CPU 64/128 Ass number 324645" 8. Add on card above motherboard using two connectors to attach to mother board, with power: "Malvern Instruments Ltd." "MSM82C55A-5RS" "42041" "2,5 PC" 9. No keyboard response to Shift+RUN/STOP 10. Can hear trans">... [ read more ]

Replacement teletype print hammer head

by billdeg
Total messages in this thread: 1
If you've finally acquired a teletype for your vintage computer, you need to replace the rubber print hammer head because it will have disintegrated. It will feel like a gummy bear candy. The acknowldeged printer hammer head replacement for the Teletype model 33 is a PVC tube, fit over the hammer like a sheath, but I have found recently that these last less than 100 hours before a the tube needs to be replaced. A permanent divot will form on the tube where it strikes the cylinder, making it useless. So here is a tip - if you use your teletype regularly, replace the hammer pad each time you replace the printer ribbon. Here is my Teletype 101 primer - how to set up an ASR 33 for use with a computer. ">... [ read more ]

Tic Tac Toe Computer 1956

by billdeg
Total messages in this thread: 1
Radio-Electronics December 1956 with "Relay Moe" article by Edmund Berkeley describing one of the earliest electronic computer games ever produced. Click image for full article.
Occasionally the question of the first computer video game comes up. Here's one that must be one of the first. This analog computer-based game is capable of determining it's own moves. Relay Moe is not the first computerized tic-tac-toe game, I am guessing the first appeared in the early 1950's.">... [ read more ]

Commodore Amiga A1200

by billdeg
Total messages in this thread: 2
Updated: [ Experiments with Amiga A1200 ] 01/30/2012
Picked up a working Commodore Amiga A1200 from the Vintage Computer Festival East 5.0 Although the system came with an external disk drive, the internal drive needs to be replaced. I attempted to install the drive from a HD2000, but they're not the right size. Amiga A1200 with Commodore 1950 monitor">... [ read more ]

Amiga 2500 Restoration

by billdeg
Total messages in this thread: 6
Updated: [ Returning Amiga 2500 to Stock ] 01/24/2012
The Amiga 2500 with Video Toaster, top cover removed. The 2500 was actually an Amiga A2000 that shipped with certain upgrades included. Motherboard Rev 6.2 Click image for larger picture.
Picture of the Video Toaster installed. Click image for larger picture.
Commodore Amiga 2500 top cover.
NEXT: Replace the battery and clean the motherboard: http://www...allery/index.php?n=2390">... [ read more ]

Commodore LCD Laptop

by billdeg
Total messages in this thread: 1
CNN just posted an article titled CES vaporware: Awesome, unreleased gadgets. Among the gadgets listed, was the Commodore LCD laptop. http://money.cnn.com/gal...porware/3.html Photo look familiar? That's because it was taken at the Vintage Computer Festival East 4, I received photo credit by the author. ">... [ read more ]

Boxed Amiga 3000 and boxed CBM 1950

by billdeg
Total messages in this thread: 2
Updated: [ Replacing Amiga Motherboard Battery ] 01/05/2012
Given to me locally. At present this computer does not boot. Front logo closeup Front Full Note that monitor is a Commodore 1950 Multiscan. Works. When 3000 system is powered on, fan comes on with left green light, nothing else happens. No screen output. The motherboard processor chip (I think, I have to remove the add-on board to get part number) starts to get hot after a few minutes.">... [ read more ]

Amiga 2000 with Dual Drives and HD

by billdeg
Total messages in this thread: 1
Commodore Amiga 2000 with dual 3.5" drives and 80MB hard drive. Click image for larger view.
The Amiga Workbench desktop
This system had no hard drive and a bad "2" diskette drive. The diskette drive was replaced, and a hard drive/RAM card was installed. Done. No Video Toaster or Flicker Fixer, just a nice gaming system. More Pictures">... [ read more ]

Franklinstein Apple II clone

by billdeg
Total messages in this thread: 1
A Frankenstein Apple II clone consisting of a Franklin Ace1000 chassis, drives, and power supply, Apple /// monitor, and Unitron clone motherboard. The system is running Apple DOS 3.3. Click on image for larger view.
The first clue that this computer is no normal Franklin Ace1000 is the "UNITRON" message that displays when the computer first boots.
The Unitron motherboard is version 658 rev C. Note how it's much smaller than a Franklin motherboard. The Unitron 658 is sized to fit i">... [ read more ]

Amiga 2000

by billdeg
Total messages in this thread: 1
An Amiga 2000 with Video Toaster, Zeus U303 and Kitchen Sync cards. Click Image for larger view.
I have a few 2000's. I would prefer to have a Flicker Fixer, but other than than this system is in great functional shape with Video Toaster software, etc. I need to replace the battery, but there is no sign of leakage. More pictures">... [ read more ]

Converting Northstar DOS for MITS 2SIO

by billdeg
Total messages in this thread: 1
I think this is right...needs to be tested. port 20,21 and so on, standard settings for the card. 2901 022 2908 023 290D 022 2815 023 2919 022 2902 022 2929 022 202B 011 292D 022 300 BAUD OR 4800 BAUD boots DOS but nothing to screen...hmmm come back to this later.">... [ read more ]

Polymorphic Systems Poly 88

by billdeg
Total messages in this thread: 5
Updated: [ burned out traces ] 12/16/2011
The Polymorphic Systems Model Poly 88 S-100 Computer
Remove the orange cover to reveal a 5-slot S-100 backplane, fan, and power supply
The rear view ports. Serial number 0846.
More Pics Restoration will be a challenge, but it's worth the effort. No testing yet. System is missing 8080 chip, fuse, and who knows what else.">... [ read more ]

Burroughs Corporation

by billdeg
Total messages in this thread: 1
A Burroughs A580 tape reader. Click image for related photos.
A local Burroughs expert has donated a number of interesting Burroughs artifacts from the 1960's and 70's. If anyone who reads this post has a comment about how these devices are incorporated into a system, please let me know. As I get more items I will upload the photos. These items will all be taken to the MARCH vintage computer exhibit in Wall, NJ (http://www.midatlanticretro.org) See also Detailed photos">... [ read more ]

Tektronix 535 Oscilloscope

by billdeg
Total messages in this thread: 1
The Tektronix Model 535 Oscilloscope
pics This thread will contain notes about the cleaning and experiments with the Model 535 scope. Not pictured is the Type 53/54C Plug-In unit and cart. ">... [ read more ]

Timex Sinclair 2068

by billdeg
Total messages in this thread: 1
The Timex Sinclair 2068. Click image for larger view.
This thread will contain restoration notes. Looking for a power supply, although I assume I can fashion something else temporarily. I have no software or manuals.">... [ read more ]
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