Found in an American documentation from 1968, this circuit uses transistors from the time. The circuit can be adapted to use equivalent modern components.
This circuit was found in an American documentation from the 60's. The transistors are from the...
This oscillator is indicated for the adjustment of FI of FM radios, having its frequency...
This configuration triggers an external circuit or simply an LED for time given by R1 and C1 (T =...