Medium impedance stage (CB20563E)

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

1 MHz Power Oscillator (CB12687E)
This circuit is suggested by the National semiconductor and is based on an increased power...
40 mA Constant Current Source (CB6632E)
The setting of this power supply is only 0.1%. We found it in a 1969 US documentation. Transistors...
Broadband Amplifier (CB6123E)
This circuit amplifies signals from 0.5 Hz to 300 kHz. We found it in an old documentation. Equivalent...