12 V Power Supply (CB24505E)

To power small projects, we found this circuit in the Radio Electronics magazine of May 1977. The transistor must be equipped with a heat sink.

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Logarithmic Amplifier with Operational (CB13772E)
The circuit presented was found in a Motorola documentation from 19761, but it can be assembled with a...
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The configuration shown is a flip-flop that can be triggered by means of two push buttons normally...