Shock mount preamp tube sockets?

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David Root
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Joined: Fri Aug 04, 2006 3:00 pm
Location: Chilliwack BC

Shock mount preamp tube sockets?

Post by David Root »

As a means of pre-empting microphonics in both preamp and power tubes, these have occasionally been used in MI amps, eg the Gibson GA-6.

Anyone have any experience to offer, particularly in adding it to an existing chassis mount socket? Rubber grommets around the mounting screws, for example?
Rattlecat
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Joined: Sun Apr 09, 2006 12:16 pm

Re: Shock mount preamp tube sockets?

Post by Rattlecat »

Not sure how I came across this site, but it is relevant to your topic.

http://members.aol.com/sbench101/#Microphonics
Zippy
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Joined: Tue Apr 25, 2006 11:18 pm

Re: Shock mount preamp tube sockets?

Post by Zippy »

Grommets will CHANGE the resonant frequency of the vibrations but not eliminate them. You might play with o-rings of varying durometer.
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David Root
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Location: Chilliwack BC

Re: Shock mount preamp tube sockets?

Post by David Root »

Rattlecat, thanx, I'm sure that would work, but it's way too ugly!
Zippy, you're right, you don't want the sockets jumping around. O-rings might do it OK.

Following on that thought, how about collar washers, one or two, fiber, nylon. Maybe not shock resistant enough?
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