[fc911c]

Hi

Just received a two 6sN7Gt tubes and I wen't to install one of them and noticed there is movement between the base and glass. Is this a problem
are they bad and should I return them?

Thanks
Frank

 

[CanMad]

It's not good. I'd return them I'm afraid. BTW, Where did you buy them from? Were they well packaged?

 

[Negatron]

What manufacture tubes are they?

 

[jamato8]

It isn't uncommon and only means that the cement used between the tube and the base has let go. I have a number of tubes like this out of the few thousand that I have. It is no big deal. I used to go to the trouble of desoldering the pins and taking the tube out of the socket, using a special cement and resoldering the tube pins. Now I just hit it with a dab of super glue to lock the tube into place. Use the base when taking the tube out of the amp socket, which you should always do.

 

[fc911c]

Quote:

Originally Posted by CanMad /img/forum/go_quote.gif It's not good. I'd return them I'm afraid. BTW, Where did you buy them from? Were they well packaged?

I got them off ebay the guy had 4000 feedback at 99% so I took the chance. yes very well packed.

Quote:

Originally Posted by Negatron /img/forum/go_quote.gif What manufacture tubes are they?

SYL

Quote:

Originally Posted by jamato8 /img/forum/go_quote.gif It isn't uncommon and only means that the cement used between the tube and the base has let go. I have a number of tubes like this out of the few thousand that I have. It is no big deal. I used to go to the trouble of desoldering the pins and taking the tube out of the socket, using a special cement and resoldering the tube pins. Now I just hit it with a dab of super glue to lock the tube into place. Use the base when taking the tube out of the amp socket, which you should always do.

ok I will give the glue a try, your average is a lot better than his, only a few out of a few thousand and I got 2 out of two.

thanks for the help everyone
Frank

 

[LoweArt]

Jamato8's advice is spot on, I've come across this on the odd occasion and a small squirt of superglue works a treat.

 

[fc911c]

Ok Thanks so the glue holds up too the heat for a permanent fix?

Quote:

Originally Posted by LoweArt /img/forum/go_quote.gif Jamato8's advice is spot on, I've come across this on the odd occasion and a small squirk of superglue works a treat.