This test circuit was found in the PE Hobbyst Handbook in a 1990s edition. The circuit tests the battery under load. The load, as the battery is selected by the switch.
This circuit is from a cookbook to timers. The circuit is triggered by an external signal and,...
The project presented consists of a flasher alternated with relay, which can be installed at the...
This circuit was obtained from a Hands-On Electronics, an American magazine from January 1987. The...