This two-transistor circuit was found in American documentation from the 1990s. The circuit can use modern general-purpose transistors.
IDT is a leading manufacturer of mobile inductive load devices (wireless). RTD uses the most...
This 80's National Semiconductor circuit uses an era integrated circuit and symmetrical 5V power...
This circuit uses na Unijunction Transistor (UJT) to produce a modulation tone for several...