Bass control (CB8722E)

Found in a 1993 Electronics Hobbyst Handbook, this passive circuit can be used with common preamplifiers and amplifiers.

Transducer 555 Oscillator (CB8119E)
This circuit was obtained in a 90’s Popular Electronics. The frequency depends on C1, a component...
Portable MW Transmitter (CB18515E)
This short-range circuit can act as a wireless microphone. We got the schematic and the printed...
XR205 Function Generator (CB24206E)
This sophisticated function generator circuit appeared in the September 1972 issue of Radio...