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tubes

  1. R

    Ameritron AL-811 Input tune help

    I have an older 811 I bought from a gentleman that used it on 11 meter. I open the cabinet and it did not have any of the update / safety mods done to it. I ordered all the upgrade kits from W8JI and a new set of 811 tubes. I tore down the inside cleaned up and added the updates. I noticed that...