Transistorized Bragraph (CB7009E)

This circuit was found in 80's Popular Electronics. The components used are common and the number of indication channels (LEDs) can be changed.

| Clique na imagem para ampliar |

1kHz Double T Oscillator 2 (CB10958E)
This circuit came out in a Popular Electronics from December 1995. It is a double T configuration that...
Narrow Pulse Sensor (CB21508E)
Found in a 1967 Electronic Design, this circuit can detect pulses as narrow as 0.2 us. Active...
Colpitts CMOS Oscillator (CB22397E)
This is the basic configuration of a Colpitts LC oscillator using a CMOS gate. ...