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TRS 80 Model 4 drive replacement
I have three Model 4's, this one was used last year by one of my students for his class project.  TRS 80 Model 4 with replacement high capacity 1/2-height disk drive.
I installed a replacement ... read more
- Total messages in this thread: 1 |
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TRS 80 Model 4P with 15Meg HD
I ran a series of tests on my TRS 80 Model 4P with TRS 80 15 Meg hard drive.  TRS 80 Model 4P with TRS 80 15 Meg hard drive
I got this one in a trade with Kelly of MARCH, in exchange for a ... read more
- Total messages in this thread: 1 |
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Pictures of New Items
I received a whole slew of computers, parts, and vintage electronics from Steve and Marcia Plotkin who were clearning out their garage. Here are some pictures. Atari 400 Tricord M40/50 File Server TI Silent 700 <... read more - Total messages in this thread: 1 |
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Tip on Copying CBM disks (non-C64)
This is a copy of a post from CBM-hackers mailing list, from Steve Gray. I am going to give it a try. "..I've had good success transfering 8x50 disks using a B128, serial cable, cbmlink, and my own CBMXfer (not really required if you can use the cbmlink commandline interface). The nice thing abo... read more - Total messages in this thread: 1 |
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SWTPC 6800 memory upgrade
I installed an additional 4K successfully onto the MP-8M2 RAM card. Now I have access to 8K 0000-0fff = 4K 1000-1fff = 8K A000- ?? = MP-A2 processor scratch RAM... read more - Total messages in this thread: 1 |
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Creative Computing BASIC Library
I am not sure where or when I got these, but here is a collection of BASIC programs from Creative Computing magazine. Using a terminal program like Teraterm a person can feed these BASIC programs by using the "send file" command. Once the proram has been downloaded, edit to operate on the system t... read more - Total messages in this thread: 1 |
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Amstrad PCW8256
The Amstrad PCW8256 is unique because the storage media is 3 inch diskettes (not 3.5"). This is the first model of the PCW "Joyce" line.  The Amstrad PCW8256 Wordprocessor Computer uses 3 inch disks (not 3.5").read more
- Total messages in this thread: 1 |
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NEC PC-8201A Laptop
For the past six months I have been doing a lot of reading and research on the early laptop computers. The NEC 8201A is not the first, but it's an excellent example of what "laptop" meant in 1983. The 8201 is actually a re-packaged Kyotronic KC-85 (named for it's Intel 8085 processor), and also is i... read more - Total messages in this thread: 2 Last Post: Correction - there is no Kyosel company 11/03/2009 |
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Saving Memory to Disk Commodore PET
Here are the directions for saving a block of memory (as in a program written to memory from a machine language program loaded from cassette) to disk. 1. format your disk. I have a 2040 attached to my Commodore PET 2001-16N OPEN 1,8,15 PRINT#1,"N0:DISKNAME, 01" 2. Load the program you h... read more - Total messages in this thread: 2 Last Post: Copy Machine Lang PET Cassette Programs 07/22/2010 |
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Teletype ASR 33 Woes
I knocked over my working teletype ASR 33. Now it does not work correctly. After locating all of the pieces, I carefully re-installed as much I could. I was only partially successful.  The typewriter part of the Teletyp... read more
- Total messages in this thread: 4 Last Post: ASR33 Update - Printing 10/25/2009 |
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TRS 80 Model 1 with Composite Mod
I am working on hacking a TRS 80 Model 1 that will work with a composite monitor. I found this thread from 2003 about it. http://www.classiccmp.org/pipermail/cctech/2003-July/017197.html More detail to come.... read more - Total messages in this thread: 1 |
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PET 8032 with 64K mem expansion
 The Commodore PET 8032. This unit has the 64K Memory Expansion Installed.
Because I don't have a working PET 4032 motherboard I decided to install a PET 64K me... read more
- Total messages in this thread: 1 |
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S-100 Buffered Prototype Board
Andrew Lynch and I have just completed the layout of a new S-100 Prototype Board that is designed to help take away the initial drugery of building S-100 prototype boards. We have laid out the board so all the address and data lines are buffered through 74LS245's or 74LS244's. Most of the c... read more - Total messages in this thread: 2 Last Post: I/O board 10/23/2009 |
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Processor Tech General Purpose Module
For my own reference, I took some pictures of Bill Sudbrink's Processor Tech General Purpose Module card, which is similar to mine except that he made some modifications to protect some of the F000+ memory when CUTTER and NorthStar DOS try to use the same spaces. Here are the pictures I took: read more - Total messages in this thread: 4 Last Post: Further attempts to fix PT GPM card 10/18/2009 |
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Burroughs L7000 Computer
I have been contacted by a jewelry store in Newark Delaware who has a Burroughs L7000 computer to donate. I have helped make arrangements to have this picked up and delivered to the MARCH museum in Wall New Jersey, part of the InfoAge complex at Camp Evans. pics... read more - Total messages in this thread: 1 |
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