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  1. J

    Flex radio

    I am a little peed off at FR, but nothing major. I volunteerd my time as a moderator on their forums via Klaas in Germany, but never even got a no thanks from them. I have a flex 1500 which has been upgraded to version 2.7.2 and its a nice improvement. I also suggested some changes to their TNF...
  2. J

    Pin diode switching

    I am looking to switch a 12v relay via pin diodes from two different rf sources to drive a transverter. The relay will direct the one of the incoming rf levels, one at a time to the transverter. One has a 100mW level and the other 2w. Does anyone have a circuit for this handy? 73
  3. J

    No need for an expensive mic

    I have a FT897D whose transmit audio leaves a lot to be desired. I removed the original mic insert, threw it away and replaced it with an eletret capsule ( 5mm dia one ) and have not looked back. Every report is now a beautiful strong audio and excellent audio. I really don't see the need to...
  4. J

    Lazy H loop

    I put up this loop 8 x 6m vertical standing, whose bottom is 1.3m off the ground on a wooden garden fence and its performance is very good. What a lot of people dont realize is that the radiation patterns are also very good and improve on the higher hf bands. I feed mine with 450R ladder line on...
  5. J

    qy5-500 tube

    Hi all, I am running a grid driven QY5-500 TUBE with zero bias and the screen voltage is derived from the rf drive into G1 for now. The age old problem of low output on 15 and 10m has reared its head. The input into G1 is via a 50R matching toroid transformer and I have 3kv on the anode...
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