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Tandon TM-100 FS/T

W

wmmullaney

Veteran Member
Joined
Sep 21, 2008
Messages
589
Location
Columbia, SC USA area
For sale or trade:
2x Tandon TM-100-4, and 1x TM-100-3 All Built around '83

These are the full-height drives found in the early CP/M computers

I have no idea if these work,and have no way to hook them up.

I also have no idea what they are worth, so I'm open to offers. They seem to be rarish, at least on ebay with BIN of around $40. This may be completely out of the ball park, as there are some all the way into the $100s.

For trade, I could really use an ok looking Apple IIc and/or IIc crt monitor
 
Last edited:
Will, the TM-100-4 is a 96 tpi drive. I don't think it was ever used on any PC--you saw them used on a lot of CP/M boxes. however--you may want to post a link there. FWIW, the -4Ms are 100 tpi and fairly rare.
 
Thanks for the corrections, Chuck. I remember reading the full height t100s were used in the PC and PCxt, either I got the extension wrong (that was -2a) or that source wasn't credible. So these drives would not work in a PC?

Just checked again, they aren't 4m, just -3 and -4, SSQD and DSQD respectively, 360 and 720kb. They actually came out of the same box as those 8080 cards, but have no way to interface to it.

I also have an MPI 51m from april '81. I have a guy who might be interested, but he hasn't emailed back.

Thanks again, Will
 
Will,

When I first got my 5150, it came with one 48 tpi drive (and 64K). That's kind of limiting when you want to do development, so I added a Micropolis 1115-VI 96 tpi drive and did some tweaking to PC DOS to get it to work. The extra 720K was great until I put a Shugart SA1000 8" hard drive on the system for a massive 4MB of storage--by then I was using PC DOS 2.0.

So yeah, you can use these on a PC (declare them as 720K 3.5" drives--but you may have to write your own driver for the -3 to get the full 360K--I don't believe that there's a standard DOS 80 track, single-sided format.
 
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