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Why do old tubes sound better than current tubes?

just wondering, is there something in the design, materials, or fabrication that makes old tubes sound better than those being currently produced?

it seems nearly universally held that old tubes are superior sounding to those made today - is there something specific about the old tubes that make then sound better?

-Scott
srosenberg

Showing 2 responses by ontjesr

ontjesr
157 posts
 
I picked up a few of the new Genalex 12AX7GENGP tubes from NS and did an audition between them and the 04/60's Telefunken I was using in my C500T.

Guess what -- even though still early, and the Genalex have only 5 hours on them or so since the swap out -- I like what I'm hearing & so, they remain in the MC slots.

Impressive so far folks.

Bob
ontjesr
157 posts
 
I picked up a few of the new Genalex 12AX7GENGP tubes from NS and did an audition over a weekend between them and the 04/60's Telefunken I was using in my C500T.

Guess what -- even though still early, and the Genalex have only 5 hours on them or so since the swap out -- I like what I'm hearing & so, they remain in the MC slots.

Impressive so far folks.

Bob
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