[TMC] Tele-Signal Corp TTY converters

[Duncan M. Brown]

(Thought I should re-post this under the proper subject heading and with
some more information.)

The AWA Museum has a complete TMC station (SBT-1KV, GPR-92, 28ASR, c1965)
that we are restoring. (see pic)  The SBE unit has 7Kc BW, but in the
original installation, it would have been rare if they operated ISB and no
reason to run 4ISB or mux's TTY.

For RTTY, there is a TMC TIS-3 and a TMC PSP-2 (dual TTY loop supply). 
There is also  a "F. S. Tone Transmitter Model 101A", a "F. S. Tone
Receiver Model 102A", and a "Transistor Switch Model 109", all made by
"Tele-Signal Corp."  (see pic)  Can't find any information about the 101A &
102A  (other than the possible patent for the AFSK generator: US3271588).
Tele-Signal was located in the NYC area.  Possibly a spin-off of TMC?? 
Anyone ever heard of them?? 

 Seems strange that there would be two AFSK transmit units and only one
RTTY converter unit as part of the station. (I haven't had a chance to
follow the wiring yet.)

Any comments??
 
Thanks,

Duncan Brown, K2OEQ

AWA Electronic Communication Museum
http://www.antiquewireless.org/
 

-------------- next part --------------
A non-text attachment was scrubbed...
Name: TMC all station.jpg
Type: application/octet-stream
Size: 261460 bytes
Desc: TMC all station.jpg
Url : http://mailman.qth.net/pipermail/tmc/attachments/20090128/6363c0cf/attachment-0002.obj 
-------------- next part --------------
A non-text attachment was scrubbed...
Name: TMC RX 3 lower right.jpg
Type: application/octet-stream
Size: 262426 bytes
Desc: TMC RX 3 lower right.jpg
Url : http://mailman.qth.net/pipermail/tmc/attachments/20090128/6363c0cf/attachment-0003.obj