7 Mar
2023
7 Mar
'23
11:38 p.m.
On Wed, Mar 8, 2023 at 3:11 AM Chris Zach via cctalk
<cctalk(a)classiccmp.org> wrote:
I noticed in a Dectape 2 document that the tape drives are just DC100
models. Are there any specific documents on what kinds of signals should
be coming out or into them?
I'd like to fix this TU58.
The drive unit from a TU58 is just the head, motor, tacho sensor and a
couple of microswitches. It contains no electronics at all (unless you
count the LED and phototransistor in the tacho sensor). All the
electronics to handle the signals from those is on the controller
board. This consists of a simple 8085-based system (IIRC, 8085
processor, 8155 RAM/IO, ROM, serial interface, etc) and the analogue
read amplifier etc.
-tony