Touch Relay (CB18273E)

With the circuit shown in the figure, it is possible to connect or disconnect a load controlled by the relay by touching the sensors X1 and X2.

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Frequency Standard (CB206E)
The circuit shown in Figure bellow generates frequencies of 50 Hz, 100 Hz, and 200 Hz. The circuit uses a...
Tunable Notch Filter (CB14923E)
This circuit rejects frequencies around 1 kHz and can be adjusted using C1. Equivalent operational...
FM Transmitter Multiplex Mixer (CB18779E)
From stereo inputs, this circuit generates a modulated and multiplexed signal to be transmitted in the FM...