220v eq will it be on uk mians ? - diyAudio
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Old 17th April 2014, 06:41 PM   #1
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Default 220v eq will it be on uk mians ?

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Old 17th April 2014, 06:55 PM   #2
Mooly is online now Mooly  United Kingdom
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Not necessarily. I've been checking our mains today as we are supposed to be involved in a CLASS trial over the coming months. Currently running at 247, and so on that basis a 220 volt rated product may well be unsuitable.
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Old 17th April 2014, 06:58 PM   #3
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O dam, thats not good what do i do?
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Old 17th April 2014, 07:05 PM   #4
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Fit a 24 volt transformer with a high enough secondary currant to carry the load with the secondary in series with the primary of the appliance. It will up the voltage one way and reduce it the other way.
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Old 17th April 2014, 07:08 PM   #5
sreten is offline sreten  United Kingdom
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Hi,

It probably will be absolutely fine assuming a standard regulator
supply for the op-amps. The regulators can handle overvoltage.

It will run a little warmer, no big deal, nothing to worry about.

rgds, sreten.
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Last edited by sreten; 17th April 2014 at 07:19 PM.
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Old 17th April 2014, 07:12 PM   #6
DF96 is offline DF96  England
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Some Chinese 220V mains transformers may struggle with 240V, especially if they were intended for 60Hz too.
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Old 17th April 2014, 07:28 PM   #7
sreten is offline sreten  United Kingdom
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Quote:
Originally Posted by DF96 View Post
Some Chinese 220V mains transformers may struggle
with 240V, especially if they were intended for 60Hz too.
Hi,

I doubt it in a line level EQ box, unless its ultra cheap and nasty.
If so its probably doing more harm than good in the first place.

rgds, sreten.
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Last edited by sreten; 17th April 2014 at 07:35 PM.
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Old 19th April 2014, 03:46 AM   #8
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We have used voltage stabilisers in Malaysia for many years to cope with varying mains supply. These are basically a saturable auto transformer
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