I spoke to a very experienced tube amp builder and asked about subbing a 6SN7 for a 6DJ8 using an adapter and he told me it would be a terrible substitution. That the two tubes were electrically quite different and it could significantly alter the sound. A circuit designed for one would be ill served with the other. It is worse in the other direction, as the 6SN7 circuit could have much more voltage than a 6DJ8 can handle.
Last edited by Bombadil; 08-28-2016 at 01:05 AM.
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