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Re: M-60 dc offset/ bias run amok

I do not agree with this. The amps are not 6sn7 tubetesters, and I don't believe one can state that if they work in the amp then they are good. I recently had some 12sx7s in my amps that 'worked' fine in the amps, but I knew they sounded horrible and sure enough I sent them off to be tested and they tested horribly. You can test the 6as7 powewr tubes in the amps though. The original posters post is another thing all together and I hope someone with more knowledge can reply.


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