What is this crud on my power tube?

LJD

Member
Messages
1,034
I gig with it regularly, always moved with a cover on it, stored in a nice dry clean room. Those are backplate 6v6s. Should i try to clean it off? It's only on that one tube.
 

HotBluePlates

Member
Messages
13,670
Who knows?

I would try a paper towel or napkin dampened with a bit of water to scrub that off. Try not to get the damp paper on the "6V6" stamp or any logo printing on the glass; it's very easy to wash off the labeling on old tubes.

If water doesn't get it clean, alcohol or naphtha definitely will (or use Goo Gone or similar if that's what you have on hand).
 

Torry Courte

Member
Messages
218
Hmm. I'd look at it under a black light. See if it's moving... :eek:

I wouldn't even worry about it, it's not going to affect anything. It's just magic tone crud :)
 
Last edited:

zenas

Member
Messages
8,871
Probably baked on bird droppings, if you or someone pulled those tubes out of some old thing.
Mojo. :)
 

HotBluePlates

Member
Messages
13,670
Oh geez, snowflake generatin. Just play

bbe3f6fa83584a41a8e3f4670bd3e7cb.jpg
 




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