Radar detector (CB8628E)

Found in a 90s Electronics Engineering, this circuit makes use of components of the time. The critical component is the microwave sensor diode.

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Nanoammeter (CB12009E)
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Preamplifier with tone control (CB9517E)
Found in National Semionductor documentation this circuit combines a tone control with an...
RF Generator (CB7424E)
Found in a 73 magazine from the 1980s, this circuit generates signals from 3.2 to 22 MHz. FETs can be...