[Hammarlund] Re: Phasing control null on crystal filter for SP-600

[David Wise]

I did that too; forgot to say so.  I centered the
phasing cap and setscrewed the knob at the mid mark,
then peaked L37 as I described.  Hmm, I think I faced
the rotor such that 10 would find it fully meshed
with both stators.  Coulda put it the other way
but that felt wrong to me.

Thanks,
Dave

> -----Original Message-----
> From: Les Locklear [mailto:leslocklear at cableone.net]
> Sent: Tuesday, July 03, 2007 1:15 PM
> To: David Wise; hammarlund at mailman.qth.net
> Subject: Re: [Hammarlund] Re: Phasing control null on crystal 
> filter for
> SP-600
> 
> 
> FWIW, I have aligned it this way for 
> years....................take off the 
> screws holding the can to the chassis. Set the air variable 
> at 1/2 mesh and 
> center the phasing knob at the mid-point. Of course you have 
> to peak it.
> 
> Close 'enuff for me or guvmint' work. It seems to work just 
> fine that way. 
> Incidentally, Collins used that method for the 51J series.