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Telefunken 6AS7

Anyone have any listening experience with these tubes? I am currently running RCA's in my OTL amp and was wondering if changing to these are going to give a wow factor, or just a different sound. They a very expensive at $700.00 - $800.00 for a quad of NOS. Or are they just pricy because they are a collector's item (which I am not interested in)?
markpao

Showing 1 response by albertporter

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albertporter
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I wonder if Telefunken actually manufactured a 6AS7? Many tubes, even top quality ones were sold as re-branded.

Example? The best 12AX7 tubes from Radio Shack were Telefunken (yes, a long time ago). Many EL34 marked as Dynaco, RCA, GE, Amperex or other names were manufactured by Mullard.

If it turns out the rave over Telefunken 6AS7 turns out to be (another brand here) chances are they can be bought for a fraction the cost.

Maybe Ralph at Atma-Sphere will see this and respond, 6AS7 is a tube he knows a lot about.
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