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Is USA made tube amp compatible with 100vac x 50 cps ?

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Posted on May 19, 2016 at 22:07:52
DAK
Audiophile

Posts: 2712
Location: PACIFIC
Joined: August 8, 2010
 I wanted to send one of my amps to my son in Japan and wanted to know if there will be a problem with the AC supply. He has access to a voltage step up device but not knowing if the power transformer on my amp is 50HZ compatible i wonder if there would be any problems. Thank you for kind responses. cheers, Dak

 

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RE: Is USA made tube amp compatible with 100vac x 50 cps ?, posted on May 20, 2016 at 04:50:24
SteveSchecter
Audiophile

Posts: 52
Location: East Tennessee
Joined: November 26, 2013
 Unless it's marked or documented otherwise, the power transformer is likely not suited for 50Hz. I'm not saying it won't work. But it will definitely run hotter and if it isn't designed for that, it likely will fail eventually. 50Hz transformers have more iron in them. If the situation were reversed (50Hz transformer running on 60Hz), there would be no problem

 

RE: Is USA made tube amp compatible with 100vac x 50 cps ?, posted on May 20, 2016 at 07:02:34
FenderLover
 Check the schematic or power transformer, itself -- to see if it designed for 50/60Hz AC supply. You cannot run a 60Hz only tranny on a 50 Hz AC source.

A 50/60Hz designed tranny can run on both.

 

More info, posted on May 20, 2016 at 07:14:58
RayP
Audiophile

Posts: 727
Location: Maryland
Joined: June 30, 2005
 A long article on the subject. The second paragraph above the photo of the transformer describes your situation.

ray

 

RE:thank you for all of the info. nt, posted on May 20, 2016 at 09:13:54
DAK
Audiophile

Posts: 2712
Location: PACIFIC
Joined: August 8, 2010

 

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