This circuit supplies a voltage of 42 V, plus a symmetrical voltage of 12 V with 1 A. The voltage regulators must be mounted on heat sinks. The transformer is 35 + 35 V with 3 A.
Found in Popular Electronics from the 90s, this circuit generates two tones that are selected by a...
Suggested by an American technical documentation, this circuit is polarized in order to provide an...
This circuit is intended to trigger a TTL door or flip-flip from a signal coming from an SCR....