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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Low Pass Second Order Filter 741 (CB25818E)
This unity gain circuit was found in the February 1995 Electronics Now magazine. The frequency is 10 kHz,...
Pulse Compressor and Expander (CB6658E)
Found in a 1967 Electronic Design, this transistorized circuit compresses and then expands a pulse....
Simple pulse extender (CB8921E)
This TTL pulse stretcher or stretcher was found in a 90's EDN. The time constant R x C1 determines...