[Central-Electronics] 100V AF phase shifter

[Dennis Petrich]

You should be able to use one of those hand held LC meters available these
days for <$100 bucks....

-----Original Message-----
From: K6JEK [mailto:k6jek at comcast.net]
Sent: Friday, December 01, 2006 11:42 PM
To: central-electronics at mailman.qth.net
Cc: Bob Sullivan
Subject: Re: [Central-Electronics] 100V AF phase shifter


Bob,

I  took the liberty of posting your response to the reflector since 
others seem to be interested.   That's about what I expected -- 
calibrated lab grade equipment.   I'm heartened to hear that the PS-2 
isn't likely the problem.

I'm actually in procrastination mode.   I seem to have lousy opposite 
side band suppression.   I'm thinking about the problem rather than 
doing anything about it -- avoiding hoisting the 100V from the 
operating position to the work bench.   Hoisting is next.

Thanks,

Jon, K6JEK

On Dec 1, 2006, at 6:44 PM, Bob Sullivan wrote:

> Jon,
>
> I do a lot of 100V/200V restoration work and infrequently the PS-2 
> requires attention. Most hams don't have the equipment to measure to 
> that accuracy which requires a high-end LCR meter or bridge that has 
> been calibrated. An example would be the GenRad Model 1692. The 
> (fairly) good news is that older versions that sold for 10K and up are 
> now available for a fraction of that cost.
>
> When was the last time you sent a piece of test equipment to a 
> calibration lab? Hi.
>
> 73, Bob
> WØYVA
> Personal site: http://www.isquare.com/personal_pages/ras-hardware.htm
>
>
>
> At 09:05 PM 12/1/2006, you wrote:
>> How do you work on the audio phase shift module?   It's full of 
>> resistors and capacitors "bridged to within .1%"   How do you measure 
>> capacitors and resistors that accurately?
>>
>> Jon, K6JEK`
>>
>> _______________________________________________
>> Central-Electronics mailing list
>> Central-Electronics at mailman.qth.net
>> http://mailman.qth.net/mailman/listinfo/central-electronics
>>
>

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