Preheating circuit (CB7187E)

This circuit was found in a General Electric manual from 1970. Its purpose is to provide a preheat to a filament lamp.

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Drum Sound (CB24617E)
This circuit that simulates the sound of a drum is part of an article published in the Radio...
100 Gain Instrumentation Amplifier (CB4925E)
This circuit was obtained from an Application Note from Linear Technology that manufactures the used...
RC Oscillator with 741 I (CB19111E)
This is a well-known RC oscillator configuration using a 741 operational amplifier. The circuit is from...