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RE: Found noisy Cryo'ed EH 6922 Confused as usual

Posted by Mechans (A) on June 3, 2012 at 10:37:51

In Reply to: Found noisy Cryo'ed EH 6922 posted by jedrider on June 3, 2012 at 08:20:53:

First I can't figure out how having a metal cover would make the sound better. The cover should help get rid of potential RMI or RFI. Do you think the open air vibrations create a better 3d effect, I just can't see it.
Also are you saying a cryoed EH current production had more tube magic albeit noisy, than an old stock Tesla. That just sounds improbable to me. Obviously taste is subjective so it's entirely possible.
Finaly how does the pin filament circuitry on one tube make other filaments noisy?? I am no EE so a simple explanation would be appreciated. Is it like, the noisy amplification from the first tube in a circuit just gets amplified and modified by all the subsequent circuit components?

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