This trimmer or reaper amplifier cuts the signal peaks at a voltage determined by the zener diodes. The gain is given by R1 and R1 and the power supply must be symmetrical from 5 to 15 V.
Using any general purpose or medium power transistor such as the BC558 or BD136 it is possible to light a...
This portable transceiver circuit for the 11 meter or 27 MHz band was found in a 1991...
This circuit mimics the sound of a siren when we turn the axis of the small DC motor. The...