Dual tube receiver (T1600E)

This receiver employs two dual triode valves. Receiver is from a 1949 Radio Electronics. Power supply not provided.

Audio Mixer (CB16633E)
This conventional version with a transistor, already explored many times on our website, was found...
Capacitive Transducer Amplifier (CB10564E)
This circuit came out in an English magazine from 1977, but it can be easily assembled today, as...
Radio for headphones CK722 (CB23625E)
This simple radio for listening to a headphone with two CK722 transistors was found in Radio...