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The Decware amps use a related trick...

...with the El34 and SV83/6π15π tubes, the so-called Hazen Grid Mod. The Decware mod is just a 0.1F film cap from g3 to cathode instead of a jumper wire as in most circuits. I don't know how the 8B's network compares in sonic effect, but there is a noticeable sonic benefit from the Decware mod with the SV83 (I haven't heard an EL34 with this trick yet.) So I agree it is worth staying with true EL34 pentodes in the 8B to keep this part of the circuit operating as designed.


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  • The Decware amps use a related trick... - JJ Triode 14:31:55 06/20/12 (0)

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