Originally Posted by Raylinds
Did you like the VA 274Bs better than the Sophias? That would be great as they ar 1/10th the price!
Do you know if there are any issues using a 274B in the WA5? I know they switch on quicker and don't like to go into a cap over 10mfd, but I don't know the circuit for the WA5. It shouldn't hurt the amp, but the tube life would be shorter.
Have checked with Jack Woo who confirmed 274B can be used in the WA5.
Regarding the Sophia tubes, I would suggest go for the "Princess" series. The "standard" or "non-Princess" is, apparently, a re-labelled Full Music tube, as some said. The Princess are Sophia's own design.
The WA5 has a soft start circuit so that may / should override the quick start on a 274B ?
I have ordered a matched pair, but it is currently out of stock and can only be shipped in 10 days time.