[Hallicrafters] S-40A Sensativity

[Paul Kraemer]

They will make it worth your while buying those old capacitors to keep the 
vintage sound.
Paul K0UYA
----- Original Message ----- 
From: "Ken Kaplan" <krkaplan at cox.net>
To: "James R Carr" <n7fcf at hctc.com>; <hallicrafters at mailman.qth.net>
Sent: Monday, January 26, 2009 10:04 PM
Subject: Re: [Hallicrafters] S-40A Sensativity


> Jim,
>
> I agree with Rodger about the resistors. A few years ago I was trying to 
> make a National NC-
> 98 hear. Sensitivity was pathetic. It turned out to be an open resistor on 
> the control grid of the
> RF amp. That resistor looked perfect. As good as new. No cracks even under 
> a 10x
> magnifier. It had not shifted up in value - er - well I guess you could 
> say it shifted up to infinity.
> I'm saving it in my pile of black beauties to sell to audiophiles <g>. 
> Once replaced, the radio
> came alive (scary thought).
>
> 73 Ken kb7rgg
>
>> I re-capped and re-tubed a 1947 S40a, and exchanged the 6SA7 mixer for a 
>> 6SB7-Y  but sensativity is still zilch. Even with a 135 ft. dipole.
>> What do I look for next?
>> Jim
>> N7FCF
>
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