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.

Unijunction modulated oscillator (CB8653E)
This circuit can be found elsewhere on this site as part of alarms or sirens. The circuit given is...
Code Switch (CB1354E)
This 3-digit code switch was obtained from an old American documentation. The capacitor is 470 uF...
8-output phase shifter (CB8152E)
Found in a 1967 Electronic Design, this circuit changes the phase of a signal in 8 different ways, given...