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12/22/24 at 03:02:53
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UFO25 Voltage change (Read 146 times)
tcb-38
Verified Member
Posts: 39
UFO25 Voltage change
12/11/24 at 08:58:53
Hi there, I'm in the market for a used UFO25 and would like to know if posible to switch voltage from 110V to 230V and how hard it is? I read a while ago the power transformer in UFO25B is a universal power transformer but can't see now any mention about this on product page nor in the manual. A schematic and with some guidance would help a lot. I'm in Europe. Best regards
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CAJames
Seasoned Member
"I've run every
red light on memory
lane."
Posts: 2204
Re: UFO25 Voltage change
Reply #1 -
12/11/24 at 15:19:11
I can't help you with rewiring your transformer, but in your situation I would consider an external step-down transformer. I've used them before with good results. My rule of thumb is the transformer ought to be rated at least 10x the power draw so for a UFO25 that would be 1000W. E.g.:
https://www.automationtechnologiesinc.com/products-page/variable-ac-transformer/...
Although I'm pretty sure you can find something similar on your side of the Atlantic.
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[FOOBAR2000 | 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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tcb-38
Verified Member
Posts: 39
Re: UFO25 Voltage change
Reply #2 -
12/11/24 at 16:08:04
Thanks but don't want that route. I used them in the past for Japanese amplifier but not anymore.
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Steve Deckert
Administrator
If the 1st watt
sucks why continue?
Posts: 6346
Re: UFO25 Voltage change
Reply #3 -
12/11/24 at 19:49:33
We recommend wiring it for 240V to extend tube life.
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tcb-38
Verified Member
Posts: 39
Re: UFO25 Voltage change
Reply #4 -
12/11/24 at 20:03:18
Thank you Steve. Is it hatd to reach on transformer wires?
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tcb-38
Verified Member
Posts: 39
Re: UFO25 Voltage change
Reply #5 -
12/18/24 at 09:47:29
Any picture with location where should wired be done,please?
I mean is hard to reach?
Thanks
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