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    572b Tubes - hard to find quality & supply

    Hello all, I have Ameritron AL-811h amplifier (Quad tube) that I picked up. The tubes installed are 811a which are down on power, well used for many years. I would like to change to the 572b tubes but finding a good tube at a fair price seems to be difficult. Most major Ham supply shops seem to...
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    Noisy Pre-Amp Texas Star 667v Turbo Mod

    Got a hot deal on a TS 667v Turbo mod. Seems to work ok, being new to amps dont have much to go off. I do have a 203p The problem is when i switch to pre amp the noise is horrendous. Its not just loud static but seems to be static and splatter mixed together. Its so bad it drown out weak...
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    Base 5/8 vertical above a 5 element beam

    Have just installed my 45 foot tower I have a 5 element TetEmtron beam and a 5/8 ShockWave vertical. After speaking to the manufacturer of the ShockWave he told me remove the radials (4) and drop the shockwave down close to the beam using the beam as the radials or ground plane. So after doing...
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