UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - What is a reasonable magnetising current for a mains transformer?

G6Tanuki · 21st Jul 2021, 4:29 pm

Yes a lot of Japanese equipment was designed for 100/110V: there was a bit of a 'thing' a couple of decades back when some grey-import Japanese ham-radios started to arrive here and to 'make them work' on UK mains the two 100V primaries [which were usually wired in parallel for 100V supplies] were rewired-in-series.

They got rather hot but produced plenty of RF output.

For a while.

No point crying to the legitimate UK importers/distributors when the thing inevitably went pop!

21st Jul 2021, 4:29 pm	#10
G6Tanuki Dekatron Join Date: Apr 2012 Location: Wiltshire, UK. Posts: 13,996	Re: What is a reasonable magnetising current for a mains transformer? Yes a lot of Japanese equipment was designed for 100/110V: there was a bit of a 'thing' a couple of decades back when some grey-import Japanese ham-radios started to arrive here and to 'make them work' on UK mains the two 100V primaries [which were usually wired in parallel for 100V supplies] were rewired-in-series. They got rather hot but produced plenty of RF output. For a while. No point crying to the legitimate UK importers/distributors when the thing inevitably went pop!