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What makes Telefunken tubes sound better?

I've reached the point in sampling 12AU7 tubes below $100 per tube where I'm having to buy tube crates to keep the pairs I've sampled. I've tried NOS and new, but out of all I end up back with Telefunkens as having the least distortion and fastest transient response. Yet the Telefunken internals are not the best materials/quality; NOS Mullard CV4003 or the new Gold Lions have higher build quality for materials and precision.

Are there links somewhere that talk to what is different for the internal design/construction of a Telefunken tube? I'd like to support newer tube manufacturers based on educated consumerism, and hope that we can get someone to replace Telefunken at an affordable cost before NOS stock is no longer an option.
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Showing 2 responses by onhwy61

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onhwy61
5,137 posts
 
(WW2) would not have occurred without Calvin Coolidge's decision to keep bleeding Germany to death
This is a very feeble attempt to absolve Germany as the sole cause of the European theater of WW2. WW2 would not have happened in Europe if not for the German expansionist, militaristic foreign policy. BTW, the half of deaths in the war occurred in the Asian/Pacific theater.

Mullard, Mazda, Amperex and RCA all made outstanding tubes. Preferences of one brand over another depends on individual tastes and the exact circuitry utilized.
onhwy61's avatar
onhwy61
5,137 posts
 
What do you mean I'm wrong! Mazda, Mullard and others did make tubes every bit as good as Telefunken. It's a fact and you need to get even weller educated to understand.
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