5U4 tubes

Anyone know what 5U4 tubes are used for? I was digging through my tubes and found them. Funny how things turn up I don't recall ever having.

88

kt_8804-03-2008 4:20am

james50 Details Discussions Posts This discussion Message User 40 posts 04-03-2008 at 08:27am Copy Comment URL Report Comment Edit Delete I think that that is a power rectifier tube.
rodman99999 Details Discussions Posts This discussion Message User 6,158 posts 04-03-2008 at 11:45am Copy Comment URL Report Comment Edit Delete YES- It's a rectifier.
kt_88 OP Details Discussions Posts This discussion Message User 242 posts 04-04-2008 at 04:07am Copy Comment URL Report Comment Edit Delete Is there something in current production that would use this tube? Just trying to find out if they are wroth anything. They appear to be in excellent condition. 88
rpf Details Discussions Posts This discussion Message User 76 posts 04-04-2008 at 04:18am Copy Comment URL Report Comment Edit Delete Yes, a number of current pieces use it. It's related to the GZ37. Check out www.tubeworld.com for more info.