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 digitally selects the inputs of a sound system by applying its signals to the...
This isolated shield uses a common optical coupler that supports several equivalents. The resistor in...
This full wave control with SCRs uses a different solution to avoid using a diode bridge: a pulse...