[Hammarlund] Super-Pro S Meter

Edward B Richards zuu6k at juno.com
Thu Mar 5 11:28:52 EST 2009


You are correct. Sorry.

Ed  K6UUZ
 
On Thu, 5 Mar 2009 13:50:14 +0000 J ALLEN CALL <w7ksg at q.com> writes:
> 
> 
> Hello:  My BC-779 manual says the S-meter is a 0-200uA meter not a 
> 0-200ma
> 
> meter.
> 
>  
> 
> J
> 
> W7KSG
> 
> 
>  
> > From: entropycat at verizon.net
> > To: zuu6k at juno.com
> > Date: Thu, 5 Mar 2009 01:18:20 -0800
> > CC: hammarlund at mailman.qth.net
> > Subject: [Hammarlund] Super-Pro S Meter
> > 
> > Greetings to Ed and the list:
> > 
> > Ed, you wrote: <snip> " The S-meter is described as 0-200 Ma, 
> ..."
> > 
> > I am having a rough time with this number. I don't think the whole 
> 
> > radio draws more than 200 mA total, except for the filament 
> circuit. 
> > Therefore, I am at a loss wondering where in the radio did 
> Hammarlund find a 
> > circuit with a 200 mA change in current with applied signal 
> strength.
> > 
> > Is it possible that this may have been misread and the actual 
> meter 
> > movement is 200 uA (200 micro-amps)? If so, this will make a big 
> > difference in S meter readings if you go with a non-original 200 
> mA meter 
> > according to your spec above.
> > 
> > 73,
> > Jim T.
> > KB6GM
> > entropycat at verizon.net
> > "entropycat" copyright 2008 James K. Thorusen
> > All Rights Reserved 
> > 
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