Forums - WTB: GEC U52

08/03/26 at 14:45:16

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WTB: GEC U52 (Read 189 times)

milkplus Verified Member Offline Posts: 42	WTB: GEC U52 07/27/26 at 20:36:48 Have been reading about how this particular tube pairs well with the SE84UFO25 and would be curious to give it a go. Anyone out there sitting on a well-testing one that they're willing to part with? Cheers.
Back to top	Lyngdorf TDAI 1120 (streamer/DAC)/Rega RP8 (w/ TNG-Spinner platter + isolation feet) -> Hegel V10 -> ZRock2 -> CSP2+ -> UFO25 -> Zu Audio DW6 Superfly/Hifiman Arya Organic/Sennheiser HD800 IP Logged Share: Likes:

PointThatThing Verified Member Offline Posts: 38	Re: WTB: GEC U52 Reply #1 - 07/30/26 at 02:29:09 I can agree this a great sounding tube, definitely my favourite of several styles tried in my SE84UFO I think I might have a spare lurking somewhere. I’ll have a hunt for it and come back to you if I find it
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milkplus Verified Member Offline Posts: 42	Re: WTB: GEC U52 Reply #2 - 07/30/26 at 07:14:27 That's great. Thanks
Back to top	Lyngdorf TDAI 1120 (streamer/DAC)/Rega RP8 (w/ TNG-Spinner platter + isolation feet) -> Hegel V10 -> ZRock2 -> CSP2+ -> UFO25 -> Zu Audio DW6 Superfly/Hifiman Arya Organic/Sennheiser HD800 IP Logged Share: Likes:

PointThatThing Verified Member Offline Posts: 38	Re: WTB: GEC U52 Reply #3 - Yesterday at 07:11:34 I’ve found the tube, I just need to get it tested, have put it in my UFO and it sounds good, but will get it done properly to make sure there is plenty of life in it Will PM you in the coming days, once it’s been checked
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CAJames

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Re: WTB: GEC U52
Reply #4 - Today at 03:13:05

Welcome to club U52! I love mine, and hope you get many years of enjoyment from yours.

I don't know what kind of tube tester you have access to, but my experience is testing rectifiers is much less informative than testing tubes with transconductance (triodes, pentodes etc.) You can find catastrophic failures, like shorts, but you already did that with your amp

. Actually predicting the lifetime is pretty iffy. Rectifiers don't amplify, they are a switch, either on or off. So there is no gain to measure and compare to a spec. They just work, until they don't. In theory a U52 ought to give decades of trouble free service. FWIW/JMO/YMMV and all that.

[Volumio | Jay's CDT2 MRK3] -> Denafrips Terminator 2 + Gaia
Sumiko Pearwood -> Mapleknoll Athena -> Luxman SUT -> Mapletree Phono 3E
STR-1002 -> Woo WA22 -> 2x UFO25s, balanced monos
Omega SAM , Hifiman Arya, Audeze LCD-XC

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