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  1. Kristopher burt

    Anytone AT6666 experimental OP amp upgrade/replacement.

    Just curious if anyone has replaced one or both of the op amps that are in the Anytone for an upgrade or better audio while transmitting? It has two 4558s. I have heard that 4580s would be an upgrade but curious if anyone has tried any upgrades to the op amp in their own 6666. Hifi...
  2. Kristopher burt

    President McKinley internal problem with transmit.

    I have a President McKinley and a new kl 503. Upon testing these units together I had been using faulty coax jumpers and didn't realize it. I had purchased the jumpers from Amazon and when I tightened the coax to the end of the radio and amp the connection electronically would open the circuit...
  3. Kristopher burt

    Emergency traffic

    I have always been skeptical that a real emergency could be aided with the use of amateur radio or even cb radio. Today I heard on the cb radio an actual call for help..I think. On the cb radio channel 15 at approximately 1320 I heard a guy out in Arizona calling for help. He was asking for the...
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