This circuit maintains on a flashing LED at a frequency determined by the capacitor. The unijunction transistor can be 2N2646.
We found this circuit in the 1972 RCA power transistors manual. The transistors admit equivalents and...
This circuit shows how to use a fixed 5 V regulator on a variable 1 A source. The integrated...
September 2017 - This new integrated circuit, which facilitates the design of PWM dimmers, can now be...