This circuit was found in a 70s documentation. The transistor is from that time. L1 has 4 turns of wire 20 in the form of 3/32 inches and L1 has 10 turns of the same wire,
This circuit was described in an article in Electronics Now magazine in December 1995. The circuit...
This circuit squares the waveform of a signal applied to its input. The circuit is from an old...
This circuit was obtained from a European magazine of the 1990s. The integrated circuit used is...