Found in a 1964 Electronic Design, this circuit for 300 mA loads uses components from that period. It produces a rapid load control trigger.
This simple balance indicator for sound equipment was found in a 1982 documentation. The M1...
Originally created to feed the filaments of a 12AX7 as an audio preamplifier to eliminate the...
This circuit was found in an American 1960s documentation. The circuit uses transistors of the...