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PRESS PLAY ON TAPE: Retro Action

by billdeg - 01/30/2009
Total messages in this thread: 1
http://www.youtube.com/w...v=aoQa1OiHlrM chicks and vintage computers.... [ read more ]

MITS Software Agreement

by billdeg - 01/17/2009
Total messages in this thread: 1
MITS Software Agreement... [ read more ]

Lanier Word Processor Model 103

by billdeg - 01/10/2009
Total messages in this thread: 3
Last Post: [ possible trade ] 05/23/2010
The Lanier Model 103 Word Processor / Computer
The University of Delaware received a Lanier Model 103 Word Processor / Computer as a donation. As you can see it's in pretty bad shape, but it may be at least partially restorable. I have not done much with it, other than open it up for a visual inspection. There's an 8080 processor on the disk drive control board. More pictures... [ read more ]

Malvern Particle Sizer - CBM 8296 OEM

by billdeg - 01/10/2009
Total messages in this thread: 2
Last Post: [ PLA Replacement Malvern CBM 8296 ] 01/11/2009
I have re-started the restoration of the Malvern "Particle Sizer" a CBM 8296 OEM unit from an earlier thread. This is no normal 8296, it looks more like a squashed 8032. In addition to the strangeness of the chassis (compared with the normal 8296), this computer has a daughter board for Co-ax communications and/or particle sizing? with an end port similar to an IBM PC. The true origins of this OEM system is proven by the 8296 label, motherboard part number 324645, and a single internal SFD-1001 drive. Note that since some of these pictures were taken a few years ago I have fixed up some of the dangling bits. Ignore the file date... [ read more ]

S-100 board testing with Z-80 ICE

by billdeg - 12/20/2008
Total messages in this thread: 4
Last Post: [ ICE and RAM may vary in compatibility ] 01/09/2009
I just finished testing a Cromemco 64KZ RAM board. I did this by using Bob Grieb's Z80 ICE, which is made to be plugged into the Z80 slot of computer or controller card. Bob created his own "PIC-based circuit that could emulate a Z80 for displaying memory, writing to I/O ports, etc. as an aid to troubleshooting..." Bob's modern version is based on the Nicolet Paratronics Z80 emulator called the Z80 NICE. I am fortunate to have been given a beta version of this device to test. I inserted his Z80 ICE into a Jade CPU card, which is installed in my California Computer Systems 2200 Series S-100 computer. Using the ICE I was able to determine that the JADE controller was working correctly. Next I tested 2 64K RAM cards a Cromemco 64KZ and a SMS 64K. The SMS was 100% OK, but not the Cromemco. H... [ read more ]

Northstar Horizon - Boot Problem

by billdeg - 12/31/2007
Total messages in this thread: 11
Last Post: [ N* back in business ] 01/04/2009
First the situation and then the questions My formerly working Northstar Horizon will no longer boot formerly known-to-work boot disks. This system used to boot up a number of NS disks, worked very well with present hardware. Not sure what happened. I did all of the standard stuff with chips and connections, but I did not do any electrical probing or anything like that. Now, when the system is powered on the drive does not engage the disk. It spins for a spell and then stops. Both the A and B drives will spin together upon boot for 30 seconds and then stop. The left / boot drive is a Tandon TM100-2A with all the jumpers off. The right drive is a MPI model 52 with the first two jumpers on. I have temporarily disconnected this drive. I have a terminator jumper installed on drive A. I have a North Star MDS AD3 controller/interface card with no visible modifications. I tr... [ read more ]

Lear Siegler ADM 3A

by billdeg - 11/16/2008
Total messages in this thread: 2
Last Post: [ ADM3 Working (always has been) ] 12/19/2008
Restoration project notes for Lear Siegler ADM 3A terminal S/N 21818 from late 1977. The bad news: I cannot communicate with a known-working computer, no response from keyboard although box prompt is present. The good news: The picture is in good shape. I cannot get the computer to respond locally either. I tried to jumper pins 2 and 3 (I believe those are the ones). Missing the dip switch cover. Updates to come. Pictures ADM3A... [ read more ]

CBM SuperPET Tips (CBM S9000)

by billdeg - 12/12/2008
Total messages in this thread: 3
Last Post: [ SuperPET links ] 12/21/2008
The manuals supplied by Commodore are frustratingly incomplete and require a lot of head banging and experimenting to accomplish what should be simple tasks. The top of the klugey list is printing a program listing. Here are some useful tips and tricks including a few things that are not found in the original manuals. I still recommend that you try to find and read a copy of the SuperPET manuals (pamplets) too. 1. In order to use the SuperPET in 6809 mode, you must have the OS boot disk titled "SuperPet WCS" present in drive 1 (left drive) of an 8050 (or 8250) dual-diskette drive. Set the side dip switches to 6809 and R/W. If you do not have this disk or a 8050/8250 drive, you'll have to trouble doing much more than staring at the initial boot menu. This menu lists the programming language options (Pascal, COBOL, FORTRAN, BASIC, etc.) BUT these components are not included in... [ read more ]

C64 for sale

by dmobile215 - 12/10/2008
Total messages in this thread: 1
Keyboard,Floppy Disk Drive (1541) Tape Drive Software 5.25 Fast Hackem Word Processor 64 Gemini Printer included! Make me an offer! ... [ read more ]

Xerox 820-II

by billdeg - 12/07/2008
Total messages in this thread: 1
Coming soon thread about Xerox 820-II project to add a 5 1/4" drive to an already-working system with 8" drives. I have received a lot of disks to archive. Pictures... [ read more ]

Altair BASIC on cassette

by billdeg - 06/23/2007
Total messages in this thread: 2
Last Post: [ WTB Altair Tapes ] 11/26/2008
I bought some "Altair tapes" on Ebay. When the box arrived, I opened it to find that it contained most if not all of the Altair BASIC versions. More to come.... [ read more ]

New Pictures

by billdeg - 11/23/2008
Total messages in this thread: 1

Timex 1000 / Sinclair ZX 81 Books and Manuals
My policy for collecting computer artifacts is to keep only working or serviceable systems and parts. I also avoid anything that I have no intention in actually using. Lastly, I have a finite space so for everything that comes in, something of lesser interest must go... Miscellaneous Grid Laptops Xerox 820-II Misc Micropolis Drives ICOM Dual 8" Drive Two IMSAI 8080's
IBM Software Pkgs ... [ read more ]

Archiving Apple II disks

by billdeg - 11/23/2008
Total messages in this thread: 2
Last Post: [ Apple IIGS 3.6v MB Battery ] 11/28/2008
Test subject: Apple II GS with 3.5 and 5 1/4" drives, ADT 1.21 and a bunch of diskettes.
Apple II GS Computer running ADT 1.21
I decided it was time to learn how to archive Apple II disks by copying them (somehow) to a modern computer. I chose an Apple II GS as the bridge system because it has a 3.5 and 5 1/4" disk drive, and it can read old Apple II diskettes. The question is how to take make disk images and save them to 3.5 disk, and then find a modern system to read the 3.5 disks. Finally I will need to be able to both run the disk images in an Apple II emulator, and also move disk images from other sources to the Apple II GS for extraction onto 5 1/4" in Apple DOS 3.3 format for use on an Apple II (II-->IIe). [1 archive diske... [ read more ]

Apple Lisa 210 A6S0200

by billdeg - 11/17/2008
Total messages in this thread: 1
In preparation for class demonstration of the Apple Lisa 2/10 I took some new photographs. Minor repairs were needed. I had to take apart the keyboard because the space bar had dislodged from the little clips that hold it in place. I also replaced the MAC mouse with an original Lisa mouse. Note the new pictures have the original mouse.... [ read more ]

IBM AT 5170

by billdeg - 11/16/2008
Total messages in this thread: 1
It had been a while since I ran my IBM AT model 5170. I opened it, and used the opportunity to test some new-to-me EGA cards and a couple of mid 80's hard drives. I also took a few pictures.... [ read more ]
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