This circuit from a Radio Electronics from October 1965 shows how to obtain the action of an SCR when triggering a relay using two transistors. The relay is according to the circuit supply voltage.
This circuit was found in documentation from 1977. It consists of a bridge of capacitances using a 50...
We found this circuit in a Gernsback documentation from 1960. The circuit is intended for...
The frequency of this traditional crystal oscillator (XTAL) depends only on the used crystal,...