100 MHz harmonic oscillator (CB9659E)

This Pierce oscillator was found in American documentation from the 1980s. Transistors support modern equivalents.

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Simple PNP Transistor Experimental AM Radio (CB11948E)
This circuit receives the local stations of medium waves listened to in a piezoelectric capsule or...
1 kHz oscillator (CB8290E)
This circuit was published in an 80's American documentation, but it is still current. The power...
Neon Power Monitor (CB24103E)
This simple neon lamp power indicator circuit was found in the January 1971 Radio Electronics...