We put together a RTTY station at the U.S. Navy base club ham station.
Model 28-ASR TTY, Collins 75A4 rcvr, URA-8A T.U., Hallicrafters
HT-37 transmitter (VFO modified for FSK), homebrew amp.
Bill was an RM2 in the Navy, now back in Nebraska.
I used this station for my very first RTTY QSO ;
Bill Orr W6SAI answered my 80m CQ!