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05/02/24 at 15:16:22

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Loose Tube Base (Read 169 times)

Sai Senior Member Posts: 88	Loose Tube Base 04/19/24 at 19:29:24 Have a couple of tubes that seem to have loose bases that I’d like to glue back together. Are there any tried/tested products for glue to use? Emission Labs seems to make tube base glue but I need to find a dealer that will sell it. Was curious if the brain trust here used anything else. A couple of the tubes are rectifiers so they do get hot. Thanks!
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Lon Seasoned Member "Love without guts is worthless!" Philip K. Dick Posts: 23569	Re: Loose Tube Base Reply #1 - 04/19/24 at 19:40:16 Previous discussion: https://www.decware.com/cgi-bin/yabb22/YaBB.pl?num=1475724240/0
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Hearafter Verified Member Posts: 21	Re: Loose Tube Base Reply #2 - 04/19/24 at 22:12:42 I use a thin bead of superglue and remove any excess after it dries and turns white with a utility blade. Holds up well and have not had any issues.
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BlackBess

Seasoned Member

TURN IT DOWN,I have
children sleeping
here

Posts: 168

Re: Loose Tube Base
Reply #3 - 04/20/24 at 04:40:46

Believe it or not, I’ve had success with an antiseptic liquid bandage product called “New Skin”. It has an alcohol carrier so sufficient drying time must be allowed. I’ved in the past remember using this “glue” on a random octal, applied with a toothpick & scraping the excess off when dry. But a little over a year ago I received an amp that had 3 0A3 vr tubes, one of which had a loose base. So I ordered up a couple of Sylvanias & a RCA. Well the RCA & one of the Sylvania tubes had the same problem. After verifying all 6 of these 0A3 tubes sounded fine I glued up the 3 that were loose. So one of these glued up tubes has been heat cycled nearly every day since March ‘23. New Skin contains pyroxylin, I’m sure the products listed previously work better, but had this in the medicine cabinet & had success, it smells like cloves for a while though.

A picture for 1st watt Phill even if makes some mad for going off topic
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1stwattlife Senior Member Posts: 88	Re: Loose Tube Base Reply #4 - 04/20/24 at 05:50:21 Thanks, man!
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Sai Senior Member Posts: 88	Re: Loose Tube Base Reply #5 - 04/20/24 at 15:35:50 Thank you all for your responses. I ended up buying Weldbond from Amazon (thank you Lon for the link to the old discussion). Will let you all know how it turns out…. https://a.co/d/bOFWuJk
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