This QST circuit generates 4 frequency signals according to the crystals used. Transistors admit equivalents although the indicated types can still be found with some ease.
Molex discrete wiring and cabling solutions with applications in consumer electronics, commercial...
This circuit acts as a VU-meter when connected at the output of any audio amplifier, triggering a...
This transistor flasher was found in an English magazine that no longer exists from 1975. The...