This circuit uses only transistors and was found in a 2003 documentation. Transistor 2N3055 must be mounted on a heat sink and the voltage is set to R10.
We found this circuit in Radio Electronics magazine. It triggers a load (relay) by the noise from...
In this circuit we show how to modulate the pulses produced by a 555 in frequency. The circuit can be...
The LM105 integrated circuit consists of a voltage regulator integrated in a metallic enclosure. The...