We found this circuit in the July 1994 Radio Electronics magazine. The circuit uses a general-purpose transistor, and the power supply can be up to 12 V depending on the relay.
This RF amplifier step has a dynamic range of 140 dB and can amplify signals from 0.5 to 40 MHz....
The circuits below were found in amarican publication of the year 1958. The transistors are...
This triac control shield uses an opto-diac to control a triac. The circuit is optimized for the...