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Re: [Amps] linears and generators

To: "'David Cutter'" <>, <>
Subject: Re: [Amps] linears and generators
From: "John Lemay" <>
Date: Tue, 17 Jul 2007 07:29:36 +0100
List-post: <>
A while ago I used a modest 12v power supply with a "small generator". It
buzzed and hummed a bit which got me thinking and eventually I put a 'scope
on the generator output. Any resemblance to a sine wave would have been a

John G4ZTR

-----Original Message-----
From: [] On
Behalf Of David Cutter
Sent: 17 July 2007 06:42
Subject: Re: [Amps] linears and generators

While we are on the subject, do you check your generator with a true rms 
meter?  Some small generators I have had to use have more of  a triangular 
waveform and 'ordinary' meters are not calibrated for that.

I understand that it is important for heaters in particular to run at the 
correct voltage, preferably within a few percent, which is not easy from 
small generators operating into a widely fluctuating load.

Does it bother anyone?


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