[GreenKeys] TT-50 and other military 14/15/19s 24 volt motor?

[Duncan Brown]

The only  DC Teletype Corp. machine that I have ever seen is the 
military version of the Model 31, the TT-30/AGA-1.  It has a 24VDC s-g  
motor and a 250VDC dynamotor on the same shaft, so it generated the DC 
voltage for the fsk converter & tty loop. From the manual, it looks like 
it was originally designed for aircraft &/or mobile applications. Later 
they put in a synchronous motor, put a handle on the top, and sold it as 
a "portable." The M31 printed on tape and used some M14/15 parts, but 
had a M28 keyboard.

I think some of the MITE machines were available in 28VDC.

In Viet-Nam (1967) we had AN/GRC-46 HF radioteletype shelters that ran 
on 24VDC. The radios were 24VDC powered and then there were 
motor-generators to produce 120VAC to run the Kleinschmidt 
teletypewriters (TT-98 & TT-76) and crypto gear (KW-7).

I've never heard of any TTY equipment that ran on 32VDC.

Have fun,

Duncan
K2OEQ

On 02-Jan-13 20:50, Bruce Gentry wrote:
> Does anyone know if there were governed motors for 14/15/19 machines 
> that ran on 24 or 32 volts DC ?  In addition to miltary installations, 
> there were marine and railroad applications where 32 volts was the 
> main power.
>
>     Bruce gentry KA2IVY