Gluing Loose Base on 6V6GT

[boots]

What's the best adhesive to use for repairing a loose base on a 6V6GT?

Seems like I have heard to use fingernail polish or superglue. I was considering 2-part epoxy. It obviously needs to withstand high temps.

Anybody have any advice? I have a sweet old Delco (RCA) tube that is flaky, and I want to try to save it. It sounds sweet when it is not being intermittent.

[ToneMerc]

I've used Rocksett high temp adhesive before.

TM

[Prairie Dawg]

Clear nail polish works great and you can buy a bottle for 99 cents Take the brush and go around the groove and then wiggle the envelope to sort of wick the stuff in. Then a second coat and set it aside for fifteen or twenty minutes.

Someone once posted the recipe that RCA used for gluing tubes into their bases.

Here's a link to everything you ever wanted to know about tube bases and adhesives, including a recipe good for 23,000 tubes..

http://www.antiquewireless.org/otb/vt0108.htm

[Structo]

Coarse marble flour 170 lb.
Orange flake shellac 19-1/2 lb.
Durite phenolic resin LR275-2 7-1/2 lb.
Medium-color (grade G) rosin 3-1/4 lb.
Denatured alcohol 9 liters
Malachite Green aniline dye 10 g.

HA!

Enough for 23,00 tube bases!

[vibratoking]

To the OP: just divide everything by 23,000 and you'll have exactly what you need.

[Structo]

Or just use some super glue.

[C Moore]

I have never had (just speaking for myself here) much success gluing those things back on. They always seem to break off.
I just put a white (or color of your choice) line on the location of the now missing guide pin. If a guy can work on an amp, he aught to be able to line up a tube with a broken guide for Pete Sake.
best

[rdjones]

I have never had (just speaking for myself here) much success gluing those things back on. They always seem to break off.
I just put a white (or color of your choice) line on the location of the now missing guide pin. If a guy can work on an amp, he aught to be able to line up a tube with a broken guide for Pete Sake.
best

AES has guide pin replacements that can slip over the pins for repair.

rd

[boots]

The problem I have is where the glass has come loose from the plastic base, and the glass part of the tube actually wiggles around within the base. I'm not sure I can repair it successfully, since the tube actually cuts out when it moves a certain direction. That leads me to believe that one of the wires connecting to the pins is intermittent.

My plan is to get it in a good position and glue it. After the glue is dry, I will re-flow the solder on the pins. If that doesn't work, it will be a cool looking ornament for my shop.

I guess I'm leaning toward super glue or nail polish at this point.

[boots]

I was tempted to try the divide by 23,000 recipe, but the math blew my mind. So I used super glue. The Loctite gel stuff. It worked just fine. I re-flowed the pins on the base, and the tube now works great! One of my finest sounding RCA 6V6's.

It looks a little rough. Super glue is messy stuff, and it ended up in some places I wish it hadn't, but hey, this tube is for my own use anyway, so it's all good. At least I didn't glue my fingers together!