RE: Weaker right channel

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OTL, Output Transformerless Amplifier User Group.

In Reply to: Weaker right channel posted by ChasLieb on March 17, 2012 at 21:53:13:

Have you done the necessary work to be certain that the problem is indeed at the amplifier and not upstream? That's the first thing to do, if you've not already done it. If the amplifier is to blame, then the problem, IMO, is most likely to reside at the input stage (the very first two tubes in the circuit). You might ask someone at Atma-sphere which tubes those are, e.g., V1, V2, or V3? Try swapping those two tubes between one channel and the other, to see whether the problem jumps from one amp to the other along with the tubes. Or, just swap all three of V1-V3 from one chassis to the other and let us know. Besides the reduced gain, do you hear any distortion? Any noise?

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Follow Ups Full Thread

Topic - Weaker right channel - ChasLieb 21:53:13 03/17/12 (4)

RE: Weaker right channel - 6AS7_6SN7 06:56:23 03/20/12 (0)

RE: Weaker right channel - Lew 11:19:51 03/19/12 (2)

RE: Weaker right channel - ChasLieb 19:21:50 03/29/12 (1)

RE: Weaker right channel - tyu 08:16:26 03/30/12 (0)

Follow Ups

RE: Weaker right channel - Lew 11:19:51 03/19/12 (2)

RE: Weaker right channel - ChasLieb 19:21:50 03/29/12 (1)

RE: Weaker right channel - tyu 08:16:26 03/30/12 (0)

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