TRS-80 Model I

From: Allison J Parent <allisonp_at_world.std.com>
Date: Sun Oct 25 13:03:29 1998

< Anyone know how many of the TRS-80 model I computers were made without t
< numeric keypad? I remember a discussion a year or so ago where someone
< the UK was looking specifically for one without the keypad. In checkin
< through my collection, I only found one without the keypad, and am just
< curious.

Quite a few, I'd speculate over 50,000 for sure. The keypad was an
option that was very frequently added though so many originals were
keypadded, LII'd and 16k'd. It's rare to see a stock TRS80 that hasn't had
factory and customer mods.

Other common mods to the base console:

 * Lovercase chars, (add a 2102 and a jumper, etch cut).
   +++started as customer mod, then DEPOT repair mod.+++
 * ^(CTRL) key so ^C and other characters could be done.
   ===Customer mod.
 * Cassette load mod, small board with 4040 counter and a gate to
   prevent cload hang under LII.
   +++Depot repair, factory LII mod+++
 * CPU clock speed up (bump the clock from 1.7mhz to 3.4mhz).
   ===customer mod.

Some companies also sold some of these mods as kits.

Allison
Received on Sun Oct 25 1998 - 13:03:29 GMT