UK Vintage Radio Repair and Restoration Powered By Google Custom Search Vintage Radio Service Data

Go Back   UK Vintage Radio Repair and Restoration Discussion Forum > Specific Vintage Equipment > Vintage Tape (Audio), Cassette, Wire and Magnetic Disc Recorders and Players

Notices

Vintage Tape (Audio), Cassette, Wire and Magnetic Disc Recorders and Players Open-reel tape recorders, cassette recorders, 8-track players etc.

Reply
 
Thread Tools
Old 19th May 2020, 12:41 pm   #21
duncanlowe
Heptode
 
Join Date: Jan 2016
Location: Stafford, Staffs. UK.
Posts: 767
Default Re: Computer Cassette Recorders

Regarding the auto stop issue. This may be related to the tape counter not running. I have seen one design where there was a magnet mounted on the wheel that drove the tape counter such that as it rotated it operated a reed switch. The control system would detect the lack of pulses from the reed switch and stop the player. When in use, you could actually hear the reed switch ticking.
duncanlowe is offline   Reply With Quote
Old 19th May 2020, 4:32 pm   #22
TonyDuell
Dekatron
 
Join Date: Jun 2015
Location: Biggin Hill, London, UK.
Posts: 3,761
Default Re: Computer Cassette Recorders

TRS-80 was a name used for all sorts of Tandy computer products (it came from 'Tandy/Radio Shack (Z)80', the Z80 being the processor in many of their computers). Yes, they badged some cassette recoders 'TRS-80' too, they were suitable for use with their computers.

But there should be another model number on it, either CTRnn (Cassette Tape Recorder) or CCRnn (Computer Cassette Recorder). I can see if I have any information (like a circuit diagram) for it if you post the model number

Bit of trivia... The TRS-80 machines had a 5 pin DIN socket for the cassette interface. Ground on pin 2, the signals on 4 and 5 (I forget which is input and which is output) and motor control on 1 and 3. The same pinout was used on the UK Dragon computers (not too surprising, they were similar to the TRS-80 Color Computer, both being based on the same Motorola application note for the 6883 SAM chip). And on a very well-known machine. The IBM5150 (original IBM PC).
TonyDuell is offline   Reply With Quote
Old 20th May 2020, 4:12 pm   #23
Eidolon
Pentode
 
Join Date: Dec 2012
Location: Worcester, Worcs, UK.
Posts: 187
Default Re: Computer Cassette Recorders

Radio Shack TRS-80 / CCR-81 Model 26-1208A written on the bottom of the deck
Eidolon is offline   Reply With Quote
Old 20th May 2020, 4:23 pm   #24
TonyDuell
Dekatron
 
Join Date: Jun 2015
Location: Biggin Hill, London, UK.
Posts: 3,761
Default Re: Computer Cassette Recorders

Right... I know that unit, I think I have one somewhere.

I found the user manual on-line somewhere. It includes the circuit diagram but no other service information. If you want it, I can send you a copy (just PM me with your e-mail address).
TonyDuell is offline   Reply With Quote
Reply

Thread Tools



All times are GMT +1. The time now is 1:40 am.


All information and advice on this forum is subject to the WARNING AND DISCLAIMER located at https://www.vintage-radio.net/rules.html.
Failure to heed this warning may result in death or serious injury to yourself and/or others.


Powered by vBulletin®
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
Copyright ©2002 - 2020, Paul Stenning.