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 circuit emits a sound at regular intervals to prevent you from falling asleep, for example. It...
November 2016 - Texas Instruments' new TLV8802 nano-power operational amplifiers for wireless...
The circuit presented is from 1994 and can be implemented with more modern equivalent components. We...