Triggered Oscillator (CB18275E)

The circuit shown in the figure generates a rectangular signal that depends on R and C, when its input goes to the high level.

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Crystal Oscillator (CB14738E)
Crystals from 100 kHz to 1 MHz can be used in this 1957 Raytheon circuit. 4 can have values...
Micro Spy (CB21872E)
Assembled with SMD components this circuit can be very small. The range is a few tens of meters. We...
High Voltage Doubler (CB20186E)
This circuit can provide a voltage of up to 900 V depending on the input voltage. The diodes must...