VintageComputer.net - Computer Project Work Related to Historical Computers of All Kinds
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Catweasel, 8in and 5 1/4
I have tried flipping things around and I have found that I can't get the following combination running together. Tandon TM 848-02 8" Qumetrak 142 5 1/4" Catweasel MK4 Plus Cable from PC -->Catweasel-->cable to drives. I have a DBIT adapter for the 8". The twist end of the cable is installe... read more

by billdeg - 04/20/2014 20:33 - Total messages in this thread: 3 Last Post: More info/links imaging 04/23/2014
 
PDP 11/40 Power Supply Issue!
Nooo! The console and power supply light flicked out while in use. WTD: Power Supply or Power Supply Module. The part number on the front is "H742a" and it's the big part of the power supply in the back. In front (looking from the side) are power modules. The modules and the console po... read more

by billdeg - 08/12/2008 22:02 - Total messages in this thread: 7 Last Post: Voltage Testing - AC Low Logic Fault? 04/19/2014
 
Digital PDP 11/44
KD11-Z card array
KD11-Z cards - the main card array. This unit also has an expansion backplane connected to the KD11-Z with a UNIBUS 9... read more

by billdeg - 04/18/2014 22:42 - Total messages in this thread: 1
 
RCA COSMAC Microkit
RCA COSMAC
The 1975 RCA COSMAC Microkit. This is the first commercial microcomputer from RCA to contain the two-chip COSMAC microprocesso... read more

by billdeg - 04/05/2013 23:51 - Total messages in this thread: 9 Last Post: RCA Microkit ROM Code Analysis 04/17/2014
 
Cromemco Series 1 12v (U2) Repair
Cromemco Series 1 LAS1412 12v regulator in power controller U2.
Cromemco Series 1 LAS1412 12v regulator in power controlle... read more

by billdeg - 04/14/2014 00:54 - Total messages in this thread: 1
 
Vintage Computer Festival East 9.1
Dual Dazzlers Child playing Altair 8800b running computer tank game
Mother and child playing a tank game made for the Cromemco Dazzler video card, running o... read more

by billdeg - 04/08/2014 21:50 - Total messages in this thread: 1
 
Heathkit ET-3400 / ETA-3400 Expansion
Heathkit ETA-3400 Expansion Unit
View of the Heathkit ETA-3400 mainboard. The ETA-3400 expansion unit was an add-on to ... read more

by billdeg - 02/18/2014 14:14 - Total messages in this thread: 3 Last Post: How to Load Monitor and Tiny BASIC 04/03/2014
 
MITS 8800b Turnmon 9600 baud
Pertec MITS altair 8800b Turnkey model key view.
A view of the on/off key on the Pertec / MITS 8800b Turnkey model. The system required some minor repairs, a short wa... read more

by billdeg - 09/15/2013 20:46 - Total messages in this thread: 4 Last Post: Doing it the hard way 04/03/2014
 
PC to Serial Terminal Screen Dump
It's kind of a pain to send a "printout" of an ASCII file to a vintage printer from a modern computer over the serial port. Here is how I sent a set of ASCII art prints to a Digital Equipment Corp Decwriter II. This technique would work with any serial terminal ("dumb" terminal), but you may need... read more

by billdeg - 04/01/2014 20:03 - Total messages in this thread: 1
 
Computer History and Restoration Links
The thread date will be updated to indicate the last update. Suggest a site here. Mid-Atlantic Retro Computing Hobbyists http://www.midatlanticretro.org Bryan's Old Computers Document Archive http://bytecollector.com/m8_docs.htm TextFiles.com rTTY Art Reposito... read more

by billdeg - 04/01/2014 09:24 - Total messages in this thread: 1
 
MITS Altair 8800b T with Dual Drives
Two MITS model 88-DCDD Single 8" disk drives. These are the older design made to match the 8800a system faceplate. Serial numbers DD 2100 and DD 3216
I have initiated work on MITS Altair 8800b Turnkey... read more

by billdeg - 09/22/2013 18:37 - Total messages in this thread: 6 Last Post: Serial Settings for Altair Disk BASIC 03/08/2014
 
For-Sale Thread
NOTE: date of thread = the last update date. Computer Products DEC logic boards 1970-80's Random items from old Repair Shop: http://www.degnanco.net/vintagecomputers.cfm Mostly Commodore and Tandy stuff here read more

by billdeg - 03/06/2014 10:07 - Total messages in this thread: 1
 
More Unidentified Cards - Can you Help?
This board has "Control Amplifier" printed on the back.
IBM? The... read more

by billdeg - 03/05/2014 16:30 - Total messages in this thread: 2 Last Post: UNIVAC 1108 board 03/06/2014
 
DEC Card Inventory
Thread date is last update's date. -INCOMPLETE- 3rd PARTY: Dataram 40785 rev A Computer Products 021-008 (2) Computer Products 021-0195 (2) Fabri-tek buffer matrix controller DIGITAL: ID / (comment / qty) M9302 (PDP11 Unibus Terminator card) M9202 M8290 (BAD) G848 M920 (3) M7... read more

by billdeg - 03/04/2014 16:07 - Total messages in this thread: 1
 
Computer Products Co. Card Inventory
Thread date is last update date. MAKE OFFER(S) Computer Products / CP A Fort Lauderdale Firm that makes controller cards for engineering purposes. These cards may have been used in a DEC A/D system in the 80's. PART NUM / DESCRIPTION / (QTY) 021-177 LL GATE CARD (2) 021-058 OPTICALL... read more

by billdeg - 03/04/2014 11:45 - Total messages in this thread: 1
 
 
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