[Amps] Westinghouse BC Ammeter QX-37

Steve Thompson g8gsq at eltac.co.uk
Mon Jan 9 03:23:15 EST 2006



Bill Turner wrote:
> ORIGINAL MESSAGE:
> 
> At 07:36 AM 1/8/2006, HAROLD B MANDEL wrote:
> 
>>The power supply is rated at 2545 VDC at 1.5 amperes.
>>
>>Hence, the power supply runs 3817.5 Watts through
>>the amplifier.
> 
> 
> 
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> 
> This part of your question puzzles me. I see you are in the US, so 
> you will be running max output of 1500 watts. Most amplifiers are 
> about 60-66% efficient, so the input will be around 2500 watts. Where 
> does the figure of 3817.5 watts come from? At no time should you be 
> putting that through the amp or lots of smoke will escape.
Most amplifiers can achieve 65% efficiency but will be noticably cleaner 
if they're correctly tuned/loaded for 50-55%.

Steve


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