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Bias type on a GU-12?

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Bias type on a GU-12?
Hepcat59 Offline
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Joined: May 2018
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#1
08-14-2018, 08:02 PM
Hello folks,
I've got a '71 GU-12. I'm not a tech and I don't the answer... Does anyone know if the GU-12 is a cathode bias or grid biased amp?

Thanks in advance!
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