This power supply uses a Raystor which is a 1964 LDR lamp coupler. The circuit was found in an Electronic Design and the transistor can be replaced with the current equivalent.
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...