Projects for the amateur radio engineer. Hardware, software, electronics and test equipment for the amateur community.
Ken, WA2MZE, commented on my article about the 20 Meter/14MHz QRP SSB handheld transceiver. He gave me some inpsiration to revise the AGC circuit. The older version did not include the IF-amplifier into the AGC strip. I thought a short while and then decided to reconstruct the AGC-RF-meter circuit board because for the first version…
In my junk box I found 2 transistors MRF 455, each capable of delivering 60 watts of rf power. I quickly made up my mind that I wanted to construct a useful circuit for these two high power rf transistors. A linear amp for my 5 watts 14 MHz QRP SSB transceiver was the goal…