KIM-1 Restoration
Started project to restore a non-functioning Commodore Kim-1 (Rev G). Working with a number of attendees at the Spring MARCH workshop we concluded that the ... read more

by billdeg - 05/19/2013 20:01 - Total messages in this thread: 1
 
Altair 8800B Restoration
The subject of this thread is to document the restoration of a previously-working Altair 8800B, which I accidentally shorted by inserting a RAM card with the power on (oops). After probing voltages and looking for A/C ripple, the general consensus of the MARCH workshop team was to open up the front... read more

by billdeg - 05/19/2013 19:59 - Total messages in this thread: 1
 
MARCH Spring Workshop
Evan K working on an Osborne I portable computer. Also pictured is MARCH's PDP 11/20 (on its side). Click Image for larger... read more

by billdeg - 05/19/2013 19:40 - Total messages in this thread: 1
 
BASIS 108
BASIS 108 Apple II Clone Computer
The West German-made BASIS 108 was an Apple II clone with a Z80 processor and built-in video features. This unit has 128K RAM. Click image fo... read more

by billdeg - 12/10/2012 11:35 - Total messages in this thread: 2 Last Post: BASIS board maint. 05/14/2013
 
Motorola MEK6800D2 Microcomputer
1-10-05 Pictures http://www.vintagecomputer.net/motorola/mek6800d2/ I have not yet tested this single board computer. I have the manual, it's very good, should be fun. Requires a 5V DC @ 2.5 MA. I have to splice up an adapter, etc. ... read more

by billdeg - 01/05/2005 17:57 - Total messages in this thread: 3 Last Post: Motorola 6800 JBUG Monitor 04/25/2013
 
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: 6 Last Post: COSMAC Processor Dates Timeline 04/24/2013
 
PTCO 2KRO 1702 Monitor
Here is a dump extracted from three 1702-A ePROMs installed in a PTCO 2KRO board. The dump below consists of the three 1702-A ROMs. The first is (my guess) some sort of 8080 monitor program or bootstrap, the second is the PTCO VDM-1 board initialization routine, and the third may be additional... read more

by billdeg - 04/17/2013 22:46 - Total messages in this thread: 1
 
CBM B128-80 Serial Bus
CBM B128-80 with Fast Bus cartridge
CBM B128-80 with Fast Bus installed to allow a person to switch from a serial-type dis... read more

by billdeg - 04/15/2013 10:19 - Total messages in this thread: 2 Last Post: B128 Serial Bus Photo 04/17/2013
 
B 128 Alternative OS Expansion Board
The Anderson Communications Engineering Alternate Operating System Expansion Circuit Board for the Commodore B Series computer
M... read more

by billdeg - 04/15/2013 18:13 - Total messages in this thread: 1
 
MITS Altair 680 16K RAM
MITS Altair 680 16K Static RAM card.></a><div class=Close up of the MITS Altair 680 16K Static RAM card. Front (before restoratio... read more

by billdeg - 04/15/2013 17:33 - Total messages in this thread: 1
 
Intersil 6100 PDP 8 Homebrew System
Took a few photos of a homebrew Intersil 6100 PDP 8 Homebrew computer built by William F. Dudley Jr. which he donated to MARCH.
More photos I did not get a chance to photograph the ROM... read more

by billdeg - 03/28/2013 23:40 - Total messages in this thread: 1
 
Trenton Computer Festival 2013
Mark 8 Minicomputer display at Trenton Computer Festival 2013
Who wouldn't be smiling if they had a beautiful Mark 8 to feature at their compute... read more

by billdeg - 03/17/2013 10:48 - Total messages in this thread: 1
 
For Trade and/ or Non-Computer Stuff
This thread is maintained relatively frequently, note the date of thread = the last update date. I am not a computer dealer or broker, but if you need one of the items found here, contact me to discuss. Vintage Computers for Sale in Repair Shop: http://www.degnanco.net... read more

by billdeg - 03/04/2013 11:40 - Total messages in this thread: 1
 
Tandy 128K Color Computer 3 (26-3334)
The Tandy 128K Color Computer 3 system with Disk Extended Color BASIC 2.1 boot screen. Also pictured i... read more

by billdeg - 03/02/2013 20:42 - Total messages in this thread: 2 Last Post: Useful Commands Tandy CoCo 03/03/2013
 
Items Wanted
This list is maintained regularly. Thread date is last update. Contact me Here. -Post-Vintage Pentium Systems- Looking for: Compaq Deskpro 5/66M DECpc 560ST Unisys PW Advantage Plus 5606 Will consider: IBM Model 95 (66mhz) Siemens PCE-55 HP Netserver 5/... read more

by billdeg - 03/02/2013 20:48 - Total messages in this thread: 1
 
 
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Image Title: HOPE9 BELL MACTUTOR
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