HF LINEAR AMPLIFIER BOARD 600W
 
MOSFETS NOT INCLUDED YOU CAN USE MOSFETS SD2933 VRF2933 OR SD2943
 
FOR SD2933:
RF INPUT: 10W MAX SSB/CW
RF OUTPUT: 600W MAX SSB/CW
 
FOR VRF2933:
RF INPUT: 10W MAX SSB/CW
RF OUTPUT: 700W MAX SSB/CW
 
FOR SD2943:
RF INPUT: 10W MAX SSB/CW
RF OUTPUT: 700W MAX SSB/CW
 
FREQ:1.5-30MHz BROADBAND
POWER SUPPLY: 48-55V/20-25A
AUTO BIAS SUPPLY:12-13.8V
IN/OUT IMPEND. 50 OHM
Idq 500mA each mosfet
 
BOARD SIZE: 100x150mm
 
PACKAGE INCLUDE SCHEMATIC AND INFORMATION GUIDE.
 
AUTO BIAS MEANS THAT WHEN TRANSMIT (TX) THE BIAS AUTOMATIC GOES ON AND WHEN IN RECEIVE MODE (RX) GOES OFF SO THE MOSFETS ARE OFF AND THERE IS NO CURRENT FLOW THIS WAY THE AMPLIFIER RUNS COOLER.
 
A temperature regulated bias circuit and a high power low loss wide band transmission line type transformers are used in this device.
 
BOARD IS ASSEMBLED AS IN PHOTOS.
 
Parts color may different from photos depend on availability.