This crowbar circuit for alternating current causes a quick fuse to blow when the load current exceeds a certain value. The circuit is from an American 80's documentation.
Random pulses are produced by this multiple oscillator using unijuncion Transistors. The...
Two alternating are produced by this circuit. The output signal must be applied to a power stage...
This receiver for an audio link by modulated light was found in a 90s Elektor. Transistors are common...