This circuit can flash for up to 30 months using alkaline batteries as shown in the table next to the diagram. The circuit is from a Radio Electronics from January 1992.
This audio amplifier circuit was found in Radio Electronics magazine from June 1966. The circuit is a...
September 2016 - It can be obtained from Mouser Electronics the new inductors for power supply of...
This experimental receiver was found in an English publication in 1979. It can receive medium-wave...