[Milsurplus] AN/AMT-3

[Hubert Miller]

I was looking thru the Tele-Tech magazine for November and December 1951, at a 2-part series on the AMT-3 radiosonde.
( BTW, I do not know if these magazine numbers are available online. )
This is the set that uses the single tube 3A4 transmitter with a 3035 kHz crystal, and untuned output.
I recall there used to be a pile of the transmitter section, alone, at a surplus store.
I didn't know this radiosonde send a 2-letter Morse code signal. Isn't that kind of cute ?
Article says signal was picked up and decoded, using look-up table, by radio operator using BC-348-R, which means the
dropping aircraft, apparently. Altho a photo with the article shows a BC-342.
I wonder if any complete AMT-3 radiosondes with the 'record disk' survived ?
That would be one interesting device to look inside !
-Hue
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