This receiver is from a 1924 Gernsback publication. The receiver has good efficiency when powered by the indicated voltages. Listening is through a high-impedance phone.
This is one of the many versions we have of a 12 V power supply with the 7812. We found it in the...
This circuit is from a thyristor manual from On Semiconductor. It makes use of a PUT and a SCR...
July 2017 - Microchip's new MCP9V91 operational amplifiers with input offset and low drift voltage...