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    plug-in input transformers in tube PA?

    I have a Bell Sound 5630 tube PA amp I am restoring. It has 3 XLR mic inputs, which are each wired through an octal socket on the chassis before going to the first preamp stage. The sockets are marked (on the chassis and the schematic) as "Low impedance input transformer socket". They currently...
    • pgraham
    • Thread
    • impedance input microphone transformer
    • Replies: 1
    • Forum: PA Systems
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