Found in a QST magazine from the 90s, this powerful unit is intended to supply a VHF transceiver for the 144 MHz band with 1.2 kW of power.
Using a BA1404 integrated circuit this small FM stereo transmitter was found in a Radio...
The operational amplifier is not very common today, but in its place an equivalent, even of...
This circuit was found in the February 1993 Radio Electronics magazine. The frequency depends on...