[Boatanchors] SBE-33 Alignment

[D C _Mac_ Macdonald]

I'm not familiar with the SBE stuff, but I expect you are supposed to be looking at an RF (AC) voltage there. 
 
Is your voltmeter capable of reading what are probably fairly low values of a somewhat high frequency (5 - 9 MHz or so) voltage? 
 
An old Heathkit or other VTVM should probably suffice for this. A "modern" digital multimeter?  Maybe, maybe not. 
 
* * * * * * * * * * * 
* 73 - Mac, K2GKK/5 * 
* (Since 30 Nov 53) * 
* k2gkk hotmail com * 
* Oklahoma City, OK * 
* USAF & FAA (Ret.) * 
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> Date: Tue, 31 Mar 2015 15:07:59 -0400
> From: dhallam at knology.net
> To: boatanchors at mailman.qth.net
> Subject: [Boatanchors] SBE-33 Alignment
> 
> Are there any SBE-33 knowledgeable people on this reflector?  I have 
> posted to the SBE group but it seems that it takes a couple of days 
> before my messages are posted to the group.
> 
> I am stumped on the first step of the SBE-33 alignment procedure, 
> carrier oscillator alignment.  I am supposed to measure the voltage on 
> the center arm of the carrier oscillator pot and adjust T4 for a 
> maximum.  I get no voltage reading on the center arm of the carrier 
> balance pot even with adjustment of T4.  I assume the carrier oscillator 
> is working because the set will receive, and I can peak noise by 
> adjustment of T4.
> 
> I suppose the next thing to do is to put the scope on the oscillator.
> 
> What could be the reason(s) for no voltage readings.
> 
> David
> KW4DH
> 
> -- 
> There are two possible outcomes: if the result confirms the hypothesis, 
> then you've made a measurement.
> If the result is contrary to the hypothesis, then you've made a discovery.
> Enrico Fermi
> 
> 
> 
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