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FDP Forum / Miscellaneous and Non-Fender Topics / Local source for silicone o-ring?

BrentD
Contributing Member
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Michigan

Poured Volume
May 28th, 2018 02:14 PM   Edit   Profile  

I don't expect miracles but I'd like to try to tame some mechanical tube rattle in a new amp. Before I change the tubes I'd like to see if some dampers make a difference. Any luck finding some in hardware stores, or am I going to have to order online?

scott-s
Contributing Member
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juneau ak.

If you must smoke, please smoke salmon!
May 28th, 2018 03:03 PM   Edit   Profile  

Is it possible to squirt a thin bead of caulk on the base of the tube and let it dry and then reinsert tubes? Never thought about having to do this but it may work.

BrentD
Contributing Member
**********
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Michigan

Poured Volume
May 28th, 2018 04:09 PM   Edit   Profile  

Thanks for the suggestion. I suppose it's possible but I don't trust myself not to muck it up quite yet. Maybe I'll try it down the road if the rings work and I want something more substantial.

Mick Reid
Contributing Member
*****

Australia

American-made in Oz!!
May 28th, 2018 04:13 PM   Edit   Profile  

I don't think anything you'll find in a hardware store will have the mass, density and heat resistance to be effective.

Purpose-made ones from a music store or online seller is probably the best way to go.

I have a pair of EL84 ones but currently not using them. I think they were EroTube brand.


Peegoo
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A dog

in a cake shop
May 28th, 2018 07:33 PM   Edit   Profile  

Do not squirt silicone RTV on the base of a tube and stick it in.

The silicone needs to be at the middle of the tube or higher for it to work.

Finding them locally may be difficult, depending on where you live.

You have a Grainger Supply? If so, they stock them. Ask for "900-series round silicone O rings." They are available in many sizes.

Measure your tube diameters so you can buy O-rings a little smaller (about 3mm or so) so they grip the glass.

Call your Grainger before you visit to make sure they have 'em.

Click

(This message was last edited by Peegoo at 11:44 PM, May 28th, 2018)

Peegoo
Contributing Member
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A dog

in a cake shop
May 28th, 2018 07:37 PM   Edit   Profile  

Another option is silicone rubber bands. Loop 'em around several times so they stay slightly snug. They won't stretch out due to heat because RTV silicone can withstand ~400 degrees F.

If you want to try RTV, get a small tube of 100% silicone caulk, and apply a 1/4" bead in a ring around the glass.

Where to apply it?

Divide the class envelope into stacked thirds. Apply the bead to the center of the top third.



BrentD
Contributing Member
**********
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Michigan

Poured Volume
May 29th, 2018 07:50 AM   Edit   Profile  

I certainly wouldn't put anything around the base. We do have a Grainger so I'll give them a call today.

I figured I'd place them so they weren't evenly spaced on the glass to avoid hitting nodes. I'm fairly certain it's rattling heaters or similar inside the tubes. Thanks!

Leftee
Contributing Member
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VA

May 29th, 2018 08:39 AM   Edit   Profile  

What amp?

BrentD
Contributing Member
**********
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Michigan

Poured Volume
May 29th, 2018 08:54 AM   Edit   Profile  

Swart STR-Tremolo. It's either the 6V6 or the GZ34.

scott-s
Contributing Member
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juneau ak.

If you must smoke, please smoke salmon!
May 29th, 2018 03:00 PM   Edit   Profile  

I totally missed the concept, it sounds like your looking to dampen the vibration of the glass part of the tube itself. I was thinking more of dampening the vibration between the socket and base of the tube.

Never mind~

BrentD
Contributing Member
**********
*

Michigan

Poured Volume
May 29th, 2018 04:09 PM   Edit   Profile  

I suppose it could be a pin socket, but I assume it's more likely to be tube bits.

No worries!

(This message was last edited by BrentD at 06:09 PM, May 29th, 2018)

BrentD
Contributing Member
**********
*

Michigan

Poured Volume
May 29th, 2018 04:12 PM   Edit   Profile  

By the way,

this made me laugh.

scott-s
Contributing Member
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juneau ak.

If you must smoke, please smoke salmon!
May 29th, 2018 05:06 PM   Edit   Profile  

That's sumpun I might do as well! Sniff'n silicone fumes makes me dumber!

Peegoo
Contributing Member
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A dog

in a cake shop
May 29th, 2018 05:10 PM   Edit   Profile  

Hey now...some people believe there's a big Santa Claus that lives up in the clouds, so don't judge!

:^D

FDP Forum / Miscellaneous and Non-Fender Topics / Local source for silicone o-ring?




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