[GreenKeys] Model 19 (AN/FGC-9) - loss of Carriage Return

Duncan Brown duncanancy at earthlink.net
Wed Jul 1 15:19:38 EDT 2026


One of the demonstration TTYs at the AWA Museum is a Teletype Corp. 
Model 19, with an AN/FGC-9 label.
Over the past few weeks it has been occasionally missing CR commands and 
has now stopped doing CR from a received signal completely.  Manual CR 
works OK.  Visual inspection seems OK, no missing springs and well 
lubricated.

Pressing the CR key and turning the motor by hand, I can see the 
Function Bail push on the CR bar and the CR Clutch Fork starts to move, 
but doesn't move far enough to disengage the CR Clutch (not like the 
manual CR does). I adjusted the Operating Lever Stop Screw down some, 
but it had no effect.

I am using Bulletins 138 & 144, but neither the text or diagrams are 
very clear.

Any ideas what the problem might be & how to fix it?

Thanks,

Duncan Brown, K2OEQ
USASA    31J30

Antique Wireless Association
  Communication Technologies Museum
    Asst. Curator, Commercial Equipment
(also chief TTY op & repairman)

i-Telex: 212503

www.antiquewireless.org

AWA Youtube channel: 
https://www.youtube.com/channel/UCX55peBhzeX1qps_VYXdLBA

Virtual AWA Museum TTY Tour: https://www.youtube.com/watch?v=TpB6jM90VV8
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