This circuit is based on a regulator component that consists of a transistor and zener in the same package. The circuit can be designed with the equivalent discrete configuration. The current is 200mA.
This test consists of a simple Hartley oscillator using a transformer of the type found on older...
This circuit, from a 1985 documentation, produces several types of sound effects selected by the...
This 6-transistor receiver was manufactured in Japan in the 60s. The circuit is superheterodyne and has a 6V...