Thorens Turntable wiring
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Discussion

oj113

Original Poster:

182 posts

228 months

Thursday 24th April 2014
quotequote all
I've just inherited a Thorens turntable dating from the mid 70's. Looks lovely and seems to be in great condition, only thing is that is that the power cable ends in a two prong plug, identical to the type of plug you see on shavers/electric toothbrushes and the like.

I'm presuming that it's not just as simple as buying an adaptor and plugging it into that as the amp demands are going to be different? Anyone have an idea as to the best way to sorting this to allow me to use it?

tr7v8

7,553 posts

252 months

Thursday 24th April 2014
quotequote all
Check the name plate if it says 220-240VAC then yes you can either use an adapter or chop it off & fit a BS1363 13amp 3 pin.

oj113

Original Poster:

182 posts

228 months

Friday 25th April 2014
quotequote all
Cheers for that, just hooked it up via an adapter and it works... to a point.

Right channel audio is fine but left channel gives no audio just a loud, deep pitched hum. Anyone have any ideas what the problem is, all the visible connections seems clean and tight.

tr7v8

7,553 posts

252 months

Friday 25th April 2014
quotequote all
Sounds like mains hum. Could be a broken wire inside or earth loop. Try plugging in one channel as a time. And swap channels. Also check the connections to the cartridge.

StuntmanMike

13,783 posts

175 months

Saturday 26th April 2014
quotequote all
The There's should have a separate wire for earth, your amp should have a screw on the back labeled ground, that's where the little connecter goes. That will be the hum sorted, also is it MM or MC, your amp will need to be set accordingly.