Medium impedance stage (CB20563E)

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

4046 Pulsing Alarm Sounder (CB25767E)
This circuit was found in the October 1994 issue of Electronics Now magazine. The 40446 IC is a...
30 kHz oscillator (CB8136E)
Found in a 1967 EEE, this circuit generates a constant amplitude signal, stabilized by a zener...
Debounced switch (CB24335E)
This circuit is from the November 1974 issue of Radio Electronics magazine. The capacitor...