Micro amplifier (CB23733E)

This direct coupled amplifier using 3 transistors and low voltage power was found in the April 1961 Radio Electronics magazine.

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Power CMOS Shield (CB19763E)
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Noise Generator (CB17203E)
This circuit generates a signal rich in harmonics that extends up to close to 1 GHz, serving for...
Salen Key Low Pass Filter (CB4865E)
This second-order low-pass Salen-Key filter was obtained from an American 1980s documentation. Formulas...