IF Simple stage (CB22241E)

We found this simple IF circuit in a book from the 50's. The transistor is made of germanium and the coil is a commercial type of the time.

Sensitive Logic Detector (CB24487E)
This configuration (using a logic gate with TTL compatible output) uses an amplifier transistor to obtain...
Beat Oscillator (CB4208E)
Placed near a common receiver, this oscillator is intended to generate a beating signal to receive...
MM5316 Clock (CB24259EE)
Published in the September 1973 issue of Radio Electronics magazine, this diagram may be useful to...