I may be getting a Creek tuner from Europe. What parts would I need to convert it to 120 volts?

A step down transfomer. 220(240) to 110 (120) Volts handling at least 500 Watts.
Switch Mode Power supplies can work over very wide voltage ranges - which your tuner almost certainly has - but linear power supplies - hi end stuff - can not.

Sorry, Clint, but he needs a step UP transformer. A little different puppy. Be sure to chenk the cycles, too.

What would one need to do internally to the Creek (or other devices) to permanently modify the unit to run this way?

My expirience was a lot of noise in the line, came through the amp to the speakers, sound terrible, I tried it with a Walker CJ 55, I also tried an AC inverter, neither was satisfactory. I would think on a tuner since there is no motor that a transformer change could be done as some units are switchable.

Jim

So, basically a transformer swap?

As for the models with switchable voltage, how does that work? Is it post-transformer, or pre-transformer, where the unit does it's switching?

Most transformers take whatever input voltage and change it to something else. You would need to find out what the values are of all the taps on the transformer, and find another at the new voltage that has the same outputs.

Of course! You guys are in America. I was thinking as an European...
Tanx Larry.

I was reading your post and i concur with you.

Although a step up transformer could be applied in all situations where we need a step up voltage in everyday common appliances, audio is a little more demanding ‘couse of noise and hum that every transformer make in converting tension, and noise is not welcome in an audio chain. My opinion should be instead a step up transformer you could replace the existence transformer for a good audio transformer with the same capacity and output characteristics.

Here's a few interesting links concerning audio transfomers:

http://www.jensen-transformers.com/an/Audi...s%20Chapter.pdf

http://www.plitron.com/pdf/AES.pdf

The Power Factor:
http://www.xppower.com/pdfs/PowerFactor.pdf