Voltage to Current Converter for LEDs (CB21623E)

This common transistor-based circuit provides power for 20 mA common white LEDs from a single 1.5 V battery.

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Stabilized Colpitts Oscillator (CB22395E)
This Colpitts oscillator with JFET has the amplitude of the signals stabilized by a diode. The...
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Overvoltage and Undervoltage Relay (CB17023E)
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