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Haltron (UK), Trigon (UK) and Ultron (germany) ECC83 tubes info request.

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Hi.

I've just found few NOS ECC83 from Haltron, Trigon and Ultron that I'm going to use with my Egnater M4 modular Pre-Amp.

Do you have some information, or the expected qualities about those brands?

The only thing I've found is that the Haltron ECC83 sells for €33,70 at http://www.drtube.com/tubeshop.htm and I've bought 6 unit for €12 each :)

BTW: I've got the opportunity to buy NOS ECC83 from the manufacturer RTF (€28,00 each) but I've found no information about it. Do you think it's worth to buy them?

Cheers!
Manuel
 
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