jaymen

Here is an old Karft tube system for single channel, it has an Aristocraft Code-A-Matic keyer option that plugs in, a Citizen-Ship single tube receiver, compound escapement, and the transmitter has a transistorized converter that makes 135 volts from a 4.8 volt Nicad pack. There is documentation for the converter, Transmitter, and Code-A-Matic. Some corrosion on the inside from leaking batteries, but not too bad. I will be listing this on the FleaBay if no body here is interested, so feel free to PM, or email me if you are interested.

Jay

GallopingGhostler

That's a nice legacy system there, Jay. I'm not interested in it personally. I have 2 Ace Pulse Commander systems already with Adams actuators, KRD sequential throttle servos and superhetrodyne transistor receivers. That is about as early as I'd want to go. Those systems were and still are reliable.

I used to remember the 45V and 90V "B" supply battery packs roughly the size of 6V lantern batteries for tube radios, and the 22.5V flash batteries a little larger than a 9 volt with same type terminals, used in series for the RC tube receivers. I see someone has created a multi-vibrator setup to synthesize the "B" supply. In high school I had planned to build myself an R/C tube system, even had the coils, tubes, and other components. As a project it never succeeded when I purchased an Ace system with Baby Twin actuator on 26.995 MHz (Brown), Fall of 1972. It cost me all of $70. Shortly after, Hobby Shack was selling their Cirrus brand 2 channel dry digital systems for a little over $70.

Enjoyed the pictures, thanks for sharing.