Medium impedance stage (CB20563E)

We found this circuit in an English publication from 1963. The circuit uses germanium transistors of the time.

100 MHz ECL Oscillator (CB7480E)
ECL logic circuits can operate at very high frequencies. This circuit was obtained from a 1977...
Carrier Operated Relay (CB21756E)
Found in a 1977 publication this circuit is relayed from a signal carrier in a receiver....
Voltage-controlled oscillator (CB20827E)
This circuit is from a Motorola manual generating signals up to 200 kHz. The publication is from...