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.
This isolated shield is from an old documentation, making use of an operational one of the time. It...
We found this transmitter circuit in a 1990s spy book. The coil data is provided along with the...
In this circuit we have the way to use common diodes to obtain low regulated voltages in a single...