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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: Tube Distortion and Bias ... a perspective posted by Naz on July 7, 2006 at 08:45:29:
Naz, I have done similar measurements and got similar results (on a 300B with 6SL7 or 6SN7 mu stage) Initially it seemed that better tubes got less distortion, but the biggest influence was the bias current in the driver tube.I recall that when reducing bias on the driver tube overall the amp became more linear. However, I also noticed that the bandwitdth of the amp and gain reduced by doing so.
Have you seen a similar phenomena?
Thanks, Pieter
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Follow Ups
- Did you measure Gain and Bandwidth as well? - TokyoTubeDude 04:08:42 07/14/06 (1)
- Yes ... - Naz 17:05:50 07/14/06 (0)
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