Sorry if this is an absolute newbie question, but recently I optained a Copland 501, but during testing of the amp, I didn't manage to get any sound out of it.
Before first power-up I inspected the board and messured the R31-R32, R131,R132.
Follwed a bais procedure, and adjusted everthing and it looked fine.
But while running the tubes 3 out of 7 tubes light up, to give more info, all four aeg 34 tubes don't light so it seems.
I'm I doing something wrong, are the aeg tubes faulty ?
Thanks in advance for advice
Before first power-up I inspected the board and messured the R31-R32, R131,R132.
Follwed a bais procedure, and adjusted everthing and it looked fine.
But while running the tubes 3 out of 7 tubes light up, to give more info, all four aeg 34 tubes don't light so it seems.
I'm I doing something wrong, are the aeg tubes faulty ?
Thanks in advance for advice
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