[Hallicrafters] SR-400A S-Meter Zero

[James Liles]

Good morning Alexander:
To zero the S-Meter, turn the AGC pot fully CW, set the meter to zero using 
the zero pot, then turn the AGC pot CCW until the meter just moves from zero 
(In receive mode with no signal and the RF gain at "0" ).    Kindest regards 
Jim K9AXN


> Message: 2
> Date: Mon, 1 Nov 2010 09:01:20 -0400
> From: "Alexander N. Gerli Sr." <ac1y at nc.rr.com>
> Subject: [Hallicrafters] SR-400A S-Meter Zero
> To: <hallicrafters at mailman.qth.net>
> Message-ID: <EB.FD.19545.F1ABECC4 at cdptpa-omtalb.mail.rr.com>
> Content-Type: text/plain; charset="us-ascii"
>
> Hi, gang!
>
> Somewhere, there was a post (by Jim K9AXN, I think...) that dealt with
> unstable S-Meter zeroing. I had a HD crash and lost lots of my ham radio
> e-mail files.
>
> Does anyone recall this post/thread? I have the SR-400A on the bench, and
> that's one thing I want to take care of. There is a 1/2W resistor off the
> S-Meter Zero pot that I'm going to change to a 1% 1W modern resistor just 
> to
> be on the safe side anyway.
>
> 73,
>
> Sandy AC1Y
>
> Alexander N. (Sandy) Gerli, Sr.
> 5805 Newhall Road
> Durham, NC  27713-2615
> 919-489-9638
>
> CCA # AC9800001
>
> A Scotsman drinks 40 gallons of alcohol each year.
> A Scotsman walks 900 miles each year.
> Scotsmen get about 25 Miles Per Gallon.