Harmonic Distortion Meter (CB26186E)

This complex circuit was found in the 1993 edition of the Electronics Experimenter's Handbook. Most of the components are still common today.

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TTL Logic Probe (CB1461E )
This circuit is from a 1977 documentation. It is powered by the power supply of the circuit under...
perature Controlled Oscillator (CB13025E)
Tem The CMOS oscillator illustrated in the figure has a frequency that depends on the temperature sensor, a...
Variable Frequency Oscillator (VFO) (CB13087E)
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