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I have a friend I help out who does this type of thing. We're currently working on some ART-13 Transmitters, which were used in WWII bombers and feature a then-

I have a friend I help out who does this type of thing. We're currently working on some ART-13 Transmitters, which were used in WWII bombers and feature a then-secret technology called "autotune" which is a mechanical way to pre-set all the knobs to known positions at the flick of a switch. It's been quite an interesting journey. BTW: Autotune does NOT actually tune the antenna network for maximum output, etc.

Roark66 4y ago
This is interesting. Perhaps you'll find it interesting that all the transceivers in Soviet (and allied) tanks during early cold War used this technology. I also saw it in big lorry mounted KF radios from the 50s~70s. There were a bunch of settings programmed in advance and then during use the operator would switch them then multiple dials would turn on their own internally setting each preset. Those tank transceivers were fm so they are not much of use today. That's one https://en.wikipedia.org/wiki/R-123 https://en.wikipedia.org/wiki/R-123 One of more popular devices still hunted and used by radio amateurs in countries in the region is the vacuum tube power amplifier for the big KF military radio R-140m. Unfortunately there is little info in English about it. It looked like this http://www.r140.de/ http://www.r140.de/ In modern times there is a control box made by some amateur that can be used to program auto tune presets in the R-140m linear amplifier. It actually tunes the antenna's network too.