Thanks for the link Sumonkabir those tubes look cool and the sales pitch seems plausible even if we can't confirm that it is meaniingful of true. The other possibility that I mentioned but haven't done is to get Gold Lion re-issue KT-77s which are a somewhat higher powered EL 34. I don't know if the bias needs to be changed but it shouldn't be majorly different than an EL-34. To be safe and certain just get a truly matched quad from a good vendor. If not buying from Trelja who on occasion sells some Chinese tubes get the from McShane Design over on Audio Asylum or by search. He really matches his tubes and trys every one of them to avoid sudden infant tube deaths.
Another tube to consider is theso called fat bottle Electro Harmonix 6CA7 which are equivalent to an EL 34 and are direct subs. They put out a really big sound although th Psvane tubes look a lot like the dimension wise. We talked earlier in the thread about the input tubes.
Another tube to consider is theso called fat bottle Electro Harmonix 6CA7 which are equivalent to an EL 34 and are direct subs. They put out a really big sound although th Psvane tubes look a lot like the dimension wise. We talked earlier in the thread about the input tubes.