Identifying EMP stock 12AT7 tube
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taoster

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Anyone know what this is?

 
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timoteus

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RAM Labs?? (shrug)
 
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LarryS

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taoster,

When I received my new EMP last February, I had a different stock tube. The labeling read:

Ei (within a circle)
Yugoslavia
ECC 81
 
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RickG

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Quote:

Originally posted by taoster
Anyone know what this is?


taoster, that's the same tube that came with my EMP. I don't know what it is...
and am now using a Sylvania Gold Brand in its place. I'm curious too!
 
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taoster

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LarryS, do you have the US Model? I got my from UK, 220V. The 6DJ8 were labelled Tesla TD10s.

Someone must know what that symbol is? Hoping to give it a comparison between the TLFKN ECC81 diamond bottom and TLFKN ECC801S diamond bottom when i found the time.

 
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RickG

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Very cool taoster. Thanks for solving the mystery!

 
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LarryS

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Yes, I purchased the US version.

But...isn't the only difference between the two in the transformer? The EMP unit itself is the same, no?
 
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taoster

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LarryS, as far as i know they are the same cept the transformer. it seems each different retailer/distributor stock their EMP stock tubes differently. It really doesnt matter, I still say rolling out the stock EMP tubes is mandatory for performance.
 
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