LED Flasher Unijunction (CB22144E)

The frequency of this circuit depends on the capacitor. The unijunction transistor can be the 2N2646.

Crystal Pierce Oscillator with Bipolar Transistor (CB13120E)
The original frequency of the Pierce Oscillator with bipolar transistor is given by the crystal, which...
Automatic Hand Dryer (CB17658E)
Of course, the design indicates a specific application for a touch switch. Thus, analyzing the...
Low frequency converter (CB9336E)
This circuit converts signals from the 350 to 500 kHz band to the 4.36 to 4.5 MHz band, enabling...