[Heathkit] Sb101 dial disaster

Bob Macklin macklinbob at gmail.com
Sat Dec 31 16:19:04 EST 2011


Unless the internal adjustments in the LMO have been messed with the main 
rotary dial cannot be far out of calibration.

One thing that effects the calibration more than the LMO is the heterodyne 
crystals. They age. But the adjustment of the graticle takes care of that 
error.

Do you have the manual?

Bob Macklin
K5MYJ
Seattle, Wa.
"Real Radios Glow In The Dark"
----- Original Message ----- 
From: "Ronnie Hull" <w5sum at glowbugs.com>
To: "heathkit" <heathkit at mailman.qth.net>
Sent: Saturday, December 31, 2011 1:09 PM
Subject: Re: [Heathkit] Sb101 dial disaster


> wel fellers thanks for the words of inspiration. I gave it another try, 
> and
> at least got the dial moving, but its jerky now, worse than it was before,
> and out of calibration. I think I'm gonna leave well enough alone and 
> learn
> to live with it. I have a freq counter that will tell me where I am, at
> least for the time being.
>
> Just got an audio check on 3987.5 and N5VU said it sounds wonderful. I'll
> check into the razorback net at 6pm with it.  The s-meter does not 
> function
> at all in receiver, and it barely wiggles with AGC while speaking in the
> mic, but I'm getting reports of full audio. Meter works fine reading plate
> voltage and plate current. Grid reading work too.  This too, I can live 
> with
> for now. All tubes check fine.
>
> I have cleaned all the switchs and controls with de-oxit.  I have NOT done
> an alignment on it yet. I may tackle that tomorrow.
>
> Again, thanks for the help.
>
> Ronnie
>
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