[Hammarlund] Super-Pro S Meter

[Lloyd KK7IZ]

Anyone wanting a copy of the manual can download it from
http://www.lloydsdipsydumpster.com/TM11-866%20BC-779,%20BC-794,%20BC-1004%20Hammarlund%20Super-Pro.pdf
Or look at all the goodies at
http://www.lloydsdipsydumpster.com/Archives-1.html
Thanx
Lloyd  KK7IZ
kk7iz at cox.net


----- Original Message ----- 
From: "Kenneth D. Grimm, K4XL" <grimm at sbc.edu>
To: <entropycat at verizon.net>
Cc: "AAHammarlund List" <hammarlund at mailman.qth.net>; <zuu6k at juno.com>
Sent: Thursday, March 05, 2009 6:55 AM
Subject: Re: [Hammarlund] Super-Pro S Meter


>
> Both the SP-200 and SP-400 parts lists specify 200 microamp meters.
> My guess is that other flavors also use the same value.
>
> Ken - K4XL
>
> entropycat at verizon.net wrote:
>> 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
>>
>>
>>
>
>
> -- 
> Ken K4XL
> k4xl at arrl.net
>
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