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Re: [Amps] 230 v wiring

To: <Amps@contesting.com>
Subject: Re: [Amps] 230 v wiring
From: "Tom W8JI" <w8ji@w8ji.com>
Date: Wed, 25 Apr 2007 17:10:06 -0400
List-post: <mailto:amps@contesting.com>
If we measure 5-6 volts on a typical meter on a 240 V line 
it is more like 8-25 volts drop (3-11%) drop so far as a 
capacitor input supply is concerned.

This is because the rectifiers only load the supply for a 
fraction of each cycle. A typical 1500 watt amplifier with 
good transformer on a reasonably stiff line draws about 
45-50 amps peak current on each half- cycle with a 240V 
line, but only about 12.5 amps average current.

73 Tom




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