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 filter was found on a 90's Radio Electronics. With the components used the cutoff frequency...
August 2017 - Mouser Electronics is supplying Vishay's new high-speed, high-sensitivity...
This amplifier for public address was found in English documentation from 1967. The transistors are from...