Hartley for 1 MHz (CB25588E)

This oscillator was found in the July 1993 Electronics Now magazine. The coil is wound with 28-wire in a 0.5 cm shape.

Car Amplifier Module (CB17114E)
This circuit is intended to reinforce old car radios, having been found in 1997. At that time,...
1 kHz triggered oscillator 1 (CB8086E)
This oscillator found in Electronics Now of the 90s is of the Normally-Off type, being triggered...
Infrared detector (CB7814E)
This circuit was found in a Popular Electronics of the 90s. The operational amplifier admits...