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Old 1st December 2018
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How to Bias Ibanez TSA15H

Can someone tell me how to bias a Ibanez TSA15H amp with a multimeter? Itb as 2 - 6V6GT tubes. I had to replace the bias trim pot. I know it needs to be bias'ed at -30v from what Ibanez told me.

Test points are at PR1 & PR2
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How to Bias Ibanez TSA15H-dsc01486.jpg  

Last edited by Robert Machine; 1st December 2018 at 03:56 AM.. Reason: Added info