Reply To: Beomaster 4400 – Sudden drop in sound?

November 6, 2022 at 9:27 am #10791
Dillen
Moderator
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    Check those lamps.
    Correct voltage lamps is not enough.
    The important thing is the current draw and their “working pattern” with varying voltages.

    Does the voltage on TR7 base also change?
    Or is it coming from IC1?

    Martin