We found this circuit in an American documentation from 1947. The circuit uses 5 tubes and has a feature to keep the tube filaments preheated.
Toshiba is selling through Mouser Electronics its high current SSM3 MOSFETs Series for mobile...
This lamp flasher configuration using an astable multivibrator is from a 1968 publication. The...
This approach alarm was found in Radio Electronics from July 1990. The circuit must be powered by a...