Hello everyone!  Its been a while but I'm back:-)   I have a questions....Will it harm my GF-1000 if I plug it in the US sinve the GF-1000 is a 100 volts and in the US its 120volts.  Even though its 120 volts there I believe that it probably powers round 115 volts.  I have a friend that had a stereo from Japan that was 100 volts and he said that he had no problem when he used it in the states.  Can anybody back that up?  Any information would be appreciated:-)

Alain

Thanks Stereo Mad!:-)  I just want to make sure so I don't fry up the circuts! I was thinking that if it was too many volts that the fuse would blow before it would do major damage.

The general concenus with 100V appliances in 120V locations, is that they should tolerate the higher voltage. However some appliances with heating elements such as hair dryers or room heaters may not fair so well. Most Japanese appliances are also dual frequency 50 or 60Hz, and this may need to be changed to suit if the appliance input frequency is manually set.

Welcome back
I have many jap 100v boxes that I run off of a 110v step down transformer here in the uk
I'm sure it will be fine as voltage differs from one place to another anyway, I'm sure they were designed with that in mind

You can confirm the input voltage level within the box itself. Power it up briefly and check the VU for battery level (normally the dial light switch), if it is within the range.

I also have similar Japanese sets, which run on 220/110V step down transformers.

Most works without any signs of trouble, but I have seen some making more than normal humming sound from the transformer and/or through the speakers.

So now, I go for DC (12V or 15V as is the case) adapters for powering up them.

A 2 Ampere DC converter normally do not struggle even at the maximum volume.

Make sure that the polarity of the DC supply matches with box's DC input socket. Most Japanese Panasonics have + ve terminal on the outside and inside pin is -ve. Normal 12V DC supplies comes with the inside center pin +ve.  

Most chinese multi-voltage DC adapters (3V to 15V) available in the market have facility for switching the polarity as well. 

With DC supply also, check the battery level meter for confirmation.

Thnaks AE_Stereo!  I'm appreciating all the information I can get:-)

There is another solution.... Get a soldering iron!!!!!!!!!!!!!!!!!!!!!!!!!!

Do not worry guys, pataka understands... And if he were next to me, I would look like this: I did some bad wrapping and packing..... .... again, he will understand.

And, yes... quite a few 100v Jap Bboxes work, have worked and are working with no probs on 110/120v... but better to be safe than sorry, get her multi-volt!!!!!!!!