5R4WG tube

Which is the best?

5R4WGA, 5R4WGB or 5R4WGY.

Thanks!

nic1004-21-2019 2:51pm

nic10 OP Details Discussions Posts This discussion Message User 80 posts 04-21-2019 at 02:56pm Copy Comment URL Report Comment Edit Delete I forgot... I have to use on Quicksilver Silver mono kt88 (90watt) You have compared this type of valve with GZ34? Thanks!
roberjerman Details Discussions Posts This discussion Message User 4,319 posts 04-22-2019 at 03:42am Copy Comment URL Report Comment Edit Delete Don't change the rectifier tube from what the amp was originally designed for! Rectifier tubes drop different amounts of voltage - this will alter the B+ voltage from what a particular circuit requires! Plus the heater's current draw may exceed the safe limit of the power transformer (cause over-heating!).
roberjerman Details Discussions Posts This discussion Message User 4,319 posts 04-22-2019 at 03:45am Copy Comment URL Report Comment Edit Delete Don't think that you are smarter than the circuit designer and play around with dissimilar rectifier tubes! This can lead to a damaged amp!
nic10 OP Details Discussions Posts This discussion Message User 80 posts 04-22-2019 at 09:22am Copy Comment URL Report Comment Edit Delete Okay! Thanks.