Are tube covers necessary?

mertmo · Post by **mertmo** » Sat Mar 28, 2009 8:57 pm

Hi all. Probably a stupid question, but I was wondering:

I've done some tube rolling in my ART Pro MPA and thinking about whether I need to replace the tube covers or not...? One of them wasn't staying in it's spot very well, popping up because of the spring. Got me thinking, do I even need them?

What say y'all --- ?

Thanks -

RefD · Post by **RefD** » Sat Mar 28, 2009 9:46 pm

only place i was ever concerned about the metal covers was on preamp tubes in guitar amps.

but i'm hardly an expert.

mertmo · Post by **mertmo** » Sat Mar 28, 2009 10:55 pm

Thanks RefD

creature.of.habit · Post by **creature.of.habit** » Sun Mar 29, 2009 12:31 pm

for one, you need tube covers when the valves are in close proximity or even making mild contact with other components. there's probably other reasons though.

mixedupsteve · Post by **mixedupsteve** » Mon Mar 30, 2009 3:46 pm

The cover shield the tube from noise, EMF ,etc and keeps the tube from vibrating in noisy environment.

Are you twisting the cover to the right to lock it after you push it down?

mertmo · Post by **mertmo** » Mon Mar 30, 2009 4:56 pm

Yes, I was twisting it correctly. I think it's just lost some of it's "grip". Those are all sound reasons for having the cover on, I will investigate making it grip better and put them back on. Thanks everyone...

mrdibs · Post by **mrdibs** » Thu Apr 02, 2009 7:01 am

Yes, you need them. Would a cheap ass company like ART spend the money on covers and the manual labor it takes to put them on if they were extranious?

Message Board

Are tube covers necessary?

Are tube covers necessary?

Who is online