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RE: Tube amplifier hum

I had a similar issue and a repair technician in Hong Kong told me to buy two cheap ($1 cheap) plug adapters.

So you buy a US to Asia/Euro Adapter - plug your amp into this adapter. Then plug that into a Asia/Euro to US adapter. Then plug it into the power bar/wall - this grounds the connection and he said in the vast majority of cases the hum will disappear. But do not use 3 prong to 2 prong plugs. So if your amplifier cord is a three prong plug make sure the last adapter is a three prong plug.

I have to say - it worked like a charm. Also - having your source component and your tube amp on the same power line bar or wall socket may also work. This latter suggestion I would try first as I am not sure about the safety of the first method - it works but is it strictly speaking safe? I don't see any Hong Kong apartments going up in flames and I don't see why it would be unsafe but I am not an engineer.

Edits: 05/20/17 05/20/17

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  • RE: Tube amplifier hum - RGA 19:30:51 05/20/17 (0)


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