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12/22/24 at 03:23:00 




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UFO25 Voltage change (Read 148 times)
tcb-38
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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
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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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tcb-38
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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
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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
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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
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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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