Power Supply 230 - 115 v Manley Reference and other stuff

petermeechanuk · 9th September 2003, 03:53 PM

I am hoping to bring the following gear across from UK all of which have UK power supplys.

The following have switches that can be set to 230 or 115volts. Any knowledge of whether I can simply flick the switch on these items and change the fuses would be appreciated -

Manley Reference Microphone
Thermionic Culture Pheonix Compressor

The following don't appear to have a switch but I would like to keep if poss. Any knowledge of what's involved in using these at 115volts would be appreciated.

UA 1176LN
Distressor
CLM pre amps and eqs
Lexicon PCM91

Thanks
-Peter

**EveAnna Manley** · 9th September 2003, 07:20 PM

Generally, fuse values for 240v should be half what 120v fuses are so if you have a 240v piece of gear that uses a 0.5A fuse, change it to 1A when you change over to 120v.

Contact specific manufacturers for exact instructions for what they require to switch over their gear. Or RTFM...

And LABEL gear you switch over volts for so you remember what each piece is set at.

madrigal · 10th September 2003, 10:19 AM

Peter, the distressor does have a switch for changing voltage - it's inside the unit, so you'll need to open the case to get at it (the fuse you'll need to change is there too)

For the rest, you'll need a good step-up transformer (which should be easy enough to get in the US), one that’s rated for at least 50% more power than the units powered off it are going to be drawing. The only other issue is whether the transformers in each unit, which are designed to operate at the 50Hz Euro AC frequency, will have a problem with the 60Hz US one. It’s usually more of an issue the other way round (operating 60Hz stuff on 50Hz), and most modern transformers will work happily from ~45 to ~63Hz, but you should check with UA and CLM just in case.

petermeechanuk · 10th September 2003, 10:35 AM

Thanks all
I've since found out that all the items have switches somewhere (some inside like the distressor). I just wasn't sure if these were user switches or whether they were meant for factory use and needed something else like extra component changes not mentioned in any of the manuals (e.g. none of them mention changing the fuse). I guess manufacturing costs make it cheaper to produce a single piece of equipment for all countries.

Thanks
-Peter

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9th September 2003, 03:53 PM	#1
petermeechanuk Gear Head Join Date: Apr 2003 Location: NYC (Originally from London) Posts: 62	Power Supply 230 - 115 v Manley Reference and other stuff I am hoping to bring the following gear across from UK all of which have UK power supplys. The following have switches that can be set to 230 or 115volts. Any knowledge of whether I can simply flick the switch on these items and change the fuses would be appreciated - Manley Reference Microphone Thermionic Culture Pheonix Compressor The following don't appear to have a switch but I would like to keep if poss. Any knowledge of what's involved in using these at 115volts would be appreciated. UA 1176LN Distressor CLM pre amps and eqs Lexicon PCM91 Thanks -Peter

9th September 2003, 07:20 PM	#2
EveAnna Manley Moderator Join Date: Jul 2002 Location: Chino, CA (cowtown) Posts: 575	Generally, fuse values for 240v should be half what 120v fuses are so if you have a 240v piece of gear that uses a 0.5A fuse, change it to 1A when you change over to 120v. Contact specific manufacturers for exact instructions for what they require to switch over their gear. Or RTFM... And LABEL gear you switch over volts for so you remember what each piece is set at. __________________ Cheers, EveAnna Manley, Manley Laboratories, Inc. www.manleylabs.com

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10th September 2003, 10:19 AM	#3
madrigal Gear nut Join Date: Nov 2002 Location: Ireland Posts: 119	Peter, the distressor does have a switch for changing voltage - it's inside the unit, so you'll need to open the case to get at it (the fuse you'll need to change is there too) For the rest, you'll need a good step-up transformer (which should be easy enough to get in the US), one that’s rated for at least 50% more power than the units powered off it are going to be drawing. The only other issue is whether the transformers in each unit, which are designed to operate at the 50Hz Euro AC frequency, will have a problem with the 60Hz US one. It’s usually more of an issue the other way round (operating 60Hz stuff on 50Hz), and most modern transformers will work happily from ~45 to ~63Hz, but you should check with UA and CLM just in case.

10th September 2003, 10:35 AM	#4
petermeechanuk Gear Head Join Date: Apr 2003 Location: NYC (Originally from London) Posts: 62	Thanks all I've since found out that all the items have switches somewhere (some inside like the distressor). I just wasn't sure if these were user switches or whether they were meant for factory use and needed something else like extra component changes not mentioned in any of the manuals (e.g. none of them mention changing the fuse). I guess manufacturing costs make it cheaper to produce a single piece of equipment for all countries. Thanks -Peter