anyone heard of pm tubes?

jackson111

New member
I have a carvin x100b and I have noticed that the tubes that came stock in it are labeled PM tubes. they are EL34's. I never have heard of this brand before but I like the tone of the tubes so I assume they are a quality tube. I have also noticed that Carvin sells the tubes on their site for replacement tubes other then that I cannot find any other information. just curious of their country of origin, and why information is so hard to find on them.
 
Re: anyone heard of pm tubes?

I'm not sure but I think they are a British company that specifies the construction of and/or relables tubes made by the existing manufacturers.
They are russian tubes, I think?
pmcomponents.co.uk
 
Re: anyone heard of pm tubes?

Never heard of PM either. But if you buy enough of something:
coffee mugs
ball caps
pens
etc etc
The manufacture will stamp your name on anything.
Nothing wrong with that.

FuseG4 is right.....they are either:
Russian
Chinese
Yugoslavian/Croatian or whatever that part of The World is called now.

Shoot an email to Carvin, they will tell you.
No stampings on the tubes eh.?
 
Re: anyone heard of pm tubes?

PM tubes is a british tube reseller, everyone ive seen has been a relabelled chinese shuguang tube.

You can find them for sale mostly in the UK but they are bringing them into the US now. Ive seen them come stock in Marshalls and Oranges.

THey are a bit of a snake oil seller (but no worse than any other tube vendor) They say they have a special high gain design then also a lower gain design and they are exactly the same tube just they test them and sort them. Those that test higher gain get a HG label the extra bit you pay is for that sorting.

I wouldnt stress out trying to find PM labelled tubes just order some more shuguang 12ax7's from a good dealer who tests the tubes and you will be in business
 
Re: anyone heard of pm tubes?

Like Groove Tubes, Ruby, TAD etc. They will test, select and sort as mentioned. Theoretically, cull out bad ones although that doesn't mean the cant go bad when in circuit for a little while. At any rate, they aren't offering anything new. There are individual retailers that sell the same tubes, tested, selected, burned in, matched, whatever you need. They may or may not be less expensive.
 
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