This is a battery powered 3W power amplifier using germanium transistors. The circuit is from an English documentation from 1967. The transistors are from the time.
This circuit was found in the ON Semiconductor's Thyristor manual of the 1980s. The high quality...
Suggested by Linear Technology, this 80's circuit makes use of an operational of the time but can...
This circuit was obtained from a Popular Electronics of the 80's. It is set to a certain pulse...