UK 220v to 110v Converter ??
« on: May 28, 2008, 04:02:28 AM »
Do any forum member know of a good 220 volt to 110 volt converter??
I ask because I had to replace my old  220v ADA guitar preamp with a 110v ADA guitar preamp because  the 220 volt one are very hard to find.

Any help or suggetions would be very appreciated. :cry:  :cry:


MartyMart

UK 220v to 110v Converter ??
« Reply #1 on: May 28, 2008, 04:20:50 AM »
Have you checked inside the unit ?
Often the windings are available for either 115v - 230v operation just like
when you purchase a Toroid from Farnell etc.

MM.
"Success is the ability to go from one failure to another with no loss of enthusiasm"

UK 220v to 110v Converter ??
« Reply #2 on: May 28, 2008, 07:08:00 AM »
Quote from: "MartyMart"
Have you checked inside the unit ?
Often the windings are available for either 115v - 230v operation just like
when you purchase a Toroid from Farnell etc.

MM.


Thanks for the quick response.

I have the schematics for the unit but I have not seen anything about different voltage.

I will check the schematics and open up the preamp.

UK 220v to 110v Converter ??
« Reply #3 on: May 28, 2008, 12:51:59 PM »
I had a look at the original schematics and it only mentions different part numbers for the transformer for UK and North america and I cannot find a switch in the unit.

Does anyone have any suggestions on a replacement transformer or step down converter??

mcs

UK 220v to 110v Converter ??
« Reply #4 on: May 28, 2008, 04:26:05 PM »
Quote from: "tonebucket"
Does anyone have any suggestions on a replacement transformer or step down converter??

The step-down transformers are available from RS, Farnell and just about any electronics shop.

Best regards,

Mikkel C. Simonsen

MartyMart

UK 220v to 110v Converter ??
« Reply #5 on: May 29, 2008, 04:50:14 AM »
Did you check inside to see if there are 2 x 115v windings available ?
Otherwise Mikkel's info is correct.

MM.
"Success is the ability to go from one failure to another with no loss of enthusiasm"

UK 220v to 110v Converter ??
« Reply #6 on: May 30, 2008, 01:21:45 PM »
Quote from: "MartyMart"
Did you check inside to see if there are 2 x 115v windings available ?
Otherwise Mikkel's info is correct.

MM.


I had a check on the inside and I didn't  find anything on the schematic either besides a parts number for the UK transformer!! :?  :?

oxide54

Re: UK 220v to 110v Converter ??
« Reply #7 on: July 15, 2011, 06:05:44 PM »
you might be able to pick up a site transformer out of the friday ad,


edit : whoops forgot i was reading three year old threads

Rob Flinn

Re: UK 220v to 110v Converter ??
« Reply #8 on: July 15, 2011, 08:56:36 PM »
Why not look at replacing the internal transformer.   I have seen a few situations where dropper transformers cause hum through being too close to other stuff.  Changing the internal transformer is a much better option in my view.
regards Rob

 

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