3-way control (CB7047E)

This is a simple circuit to control a set of lamps from 3 different points. We found it in an old Popular Electronics.

2.5 W Transistorized Amplifier (CB1316E)
This amplifier with complementary symmetry output and good sound quality was found in...
Parametric Equalizer (CB920E)
This circuit should be placed between the signal source and the input of a recorder or amplifier....
Flasher for the power grid (CB6797E)
Found in an Electronics World of 1968 this circuit can use current SCRs and the diodes are...