This old circuit, from the 80's, uses an integrated circuit that is uncommon today. The circuit is intended for loads controlled by triac and the resistors depend on the desired control.
We show an oscillator that produces rectangular TTL signals based on inverters. Inverters can also be...
This resistance meter uses a two-transistor oscillator as basic configuration. The tone produced...
This old circuit, from the 80's, uses an integrated circuit that is uncommon today. The circuit is...