We found this circuit in an old English documentation. Transistors support modern equivalents. The circuit converts signals in the 5 to 15 MHz band for tuning into a common medium wave radio.
This circuit consists of a Step-Down converter (voltage reducer) that can provide a 5 A output with...
This circuit is from an English publication of 1982. The bipolar transistor can be a BC548 and the...
The frequency of the sound produced in the speaker depends on the light that falls on the...