6J5 to 6C45P?

[currly30]

Would I be able to use the 6J5 tubes with an adapter in place of the 6C45P?

 

[Paul Birkeland]

Most definitely not a good idea!

 

[currly30]

Why is that? Doesn't it have the same voltage and current?

 

[Doc B]

Very different tube with much less gain, much less max plate dissipation  and much higher output impedance. The most feasible substitute for a 6C45pi is a WE437A. IME the 6C45pi sounds just as good as the 437A and even a bit better in some applications.

 

[Paul Birkeland]

You'd also be running at nearly maximum cathode current, which would also likely shorten the lifetime of a 6J5.

 

[currly30]

Interesting. Thank you for the information.

 

[bergurbrag]

Hi ! Are there any upgrade tubes for the Mainline you would recomend, that would upgrade the sound ?

 

[Doc B]

The most feasible substitute for a 6C45pi is a WE437A. Of course this requires completely different sockets and the tubes are very expensive. IME the 6C45pi sounds just as good as the 437A and even a bit better in some applications.

IMO the energy would be better spent upgrading headphones or maybe playing with boutique capacitors.

 

[ipetruk]

Also 6S15p, I tried it. Sounds different, a matter of taste