Does anyone know of a hard drive controller available for the TRS80 model 3 or 4? I realize that if there is one it is/was for the old mfm drives but I would...
... A 1.44mb drive is normally also takes 720k and the drive will autodetect by sensing the hole in the disk "sleeve" (and disregard the HD input). So yes. ...
... I know that it does *not* keep the TRS-80 authentic with the 1980's version, but I think someone needs to design a card that will take Compact Flash eprom....
If I understand you correctly, you are saying that a standard 1.44mb floppy drive would work but only with 720K disks. I was actually hoping to use them as...
Interesting. I know that all Commodore drives in the USA are 300RPM. There are a lot of emulators for the PC that can be used to read and format disks in ...
... how the ... even ... that ran at ... and double ... Standard 5 1/4" floppy drives run at 300 rpm. The high density drives are 360s (as well as 8" drives)....
... Does anyone know where to get *technical* information on the hard disk interface for each of the TRS-80 models? The software-level interface could be...
AFAIK, all models used the same system EXCEPT the 8 Mb drives. You could try Frank Durda IV on comp.sys.tandy Neil ... From: Mark McDougall ... Does anyone...
I have seven of the 9 issues of PROG/80 from Softside Magazine. I am missing #1 (March 1979) and #7 (May 1980). Anyone have copies of those? Anyone else have a...
Jim, I wouldn't bother with an older drive. The number of hours on it would mean that it will soon fail, if it's not already dead. A much better way to go is...
Hi: 30,000,000 sounds high to me. Was this for all TRS-80s or just the Model IV? Does anyone have production figures for the Model 1, Expansion Interface...
The C64 was on the next 25 list. Kinda silly since it caused the home PC/video game war that killed the market in the mid 80's. It wasn't the only machine to...
Mid Atlantic USA - Wilmington, DE Vintage Computer Swapmeet - October 7th. Only one month away! 2800 square feet of hard-to-find "classic" computers...
A few months ago, I asked for help about a wire that got loose inside my M.III Now I'm sure where it goes, but I was told to be very careful working there. ...
Yes. You must use solder. It looks like the center core of a shielded wire that terminates in a resistor that connects to a PCB pad. Aluminium foil has no part...
Extra keys not withstanding, does anyone know if the Model III & IV keyboards are interchangable? I just got a Model IV with keyboard that was pretty much...
Hello Brian ... They are not the same on my model III and 4 (UK 220V versions so it might not be the same in US). ... I would look for some connector for the...
Hi! I'm looking for the following TRS-80 Computers in the Philadelphia/NJ area... 1. A Model I Base Unit. 16k Level II (W/O Power Supply or Monitor is OK) 2. A...
Not in NJ, but in Fort Worth Texas, 76135. Got a (2) Model III, a Model 4, a Model 100, lots of disk and manuals, some cassete tapes etc. Write or call if ...
Hi Neil, Just how does this pertain to TRS80s? Can you elaborate? ... From: Neil Morrison To: M100 List ; Coco on Yahoo ; TRS-80 Sent: Thursday, September 14,...
It's worth noting. It might give a pointer to someone as to how to get an IDE drive to work on one or more of our favorite 8 bit computers - possible simpler...
This unfortunately won't help with the Model III/IV keyboard problem but for anyone on the list in need of a replacement Keyboard for a Model 1 I may still...
I have a Model IV with an added graphics card I'm not using at present. TRSDOS for Model III and IV, DR CP/M 3/Montezuma CP/M 2.2/Pascal Compiler. Contact me...
The keyboads should be the same. I know this because I originally used a surplus keyboard on a surplus Model III motherboard. I have been using it on a Model...
Manuals: http://asub.arknet.edu/wade/wintrs80.htm http://www.trs-80.com/ also see http://www.oldskool.org/guides/tvdog/documents.html D L T are conected to pin...
Neil, Thanks for the info. I had logged on to tell everyone to forget it as I found the problem. Operator error. As in the soldering iron operator. Me. I...
I just made my first 100% working TRSDOS disk, and looking around I found the memtest program. But when I used it, I got a bad checksum for ROM C (2F84) ...
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