Ameritron AL-80B out of service

Discussion in 'Amateur Radio Amplifiers' started by KE8CTG, May 18, 2019.

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  1. IZ4OSH

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    You should check the valve, how you explain the valve grid and short. It had happened to me with my AL80A I changed the original valve because it was exhausted and I bought a Chinese one, after two months a day at the ignition I saw a flash, I checked and I did not see anything abnormal, I disassembled the valve and noticed the grid in short. Hence the decision to change valve type, modification with gs31b. Now AL80A is back more alive than ever.

    Greetings Ale
     

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