Precision Heater Control (CB25880E)

Based on a CA3059 zero-cross switch, this circuit was found in the July 1995 Electronics Now magazine. The circuit is not isolated from the mains.

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Gun Sounds Generator (CB4626E)
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Twin-T Oscillator (MSB031)
This circuit generates sine low-frequency signals. The frequency depends on the twin-T network....
Divider by N 4017 (CB25914E)
In the figure we have one of the many ways to program the counting of a 4017. The circuit uses...