Fw: [Hallicrafters] S38 Front end

[Dick Blaney]

Well, the old memory ain't all gone, I was half right, at least.  Bands 1 
and 2 on my S-38 both have series padders to set the high end of the band, 
and parallel trimmers to set the low end of the band.  Bands 3 and 4 only 
have parallel trimmers to set the low end, and leave the high end float. 
Again, this is the 6 tube first version, and I don't know about the later 
versions.
Dick

----- Original Message ----- 
From: "Dick Blaney" <wb8mhe at bright.net>
To: "Kirk Z Bailey" <deliberatus at verizon.net>; 
<hallicrafters at mailman.qth.net>
Cc: "Dick Blaney" <wb8mhe at bright.net>
Sent: Tuesday, April 04, 2006 4:38 PM
Subject: Re: [Hallicrafters] S38 Front end


> It's been a while since I've been inside S-38, (no suffix), but if I 
> remember right, that first model had both ends adjustable, trimmers for 
> the bottom end and padders for the top end.  I'll have to get that out and 
> look. BTW, I got this S-38 new in 1947 while in High School, from a mail 
> order house in Chicago.  I think the name of it was Concord Radio.
> Dick
>
> ----- Original Message ----- 
> From: "Kirk Z Bailey" <deliberatus at verizon.net>
> To: <hallicrafters at mailman.qth.net>
> Sent: Monday, April 03, 2006 11:46 PM
> Subject: [Hallicrafters] S38 Front end
>
>
>> this thing is a wonder for designing it CHEAP but savvy. The front end 
>> does not offer variable inductances- heck the LO uses part of the upper 
>> band windings to help tune to the lower bands! The trimmers adjust the 
>> top of each band FINE, but there is no way to calibrate toe BOTTOM of the 
>> band, makijg dial preciwsion rather problematical. THANK THE GODS for 
>> wwv, it lets me do some useful work on it without signiricant instruments 
>> beyond an experienced ear.
>>
>> But it's fun anyway. Wonder what uit could have been like with a few 
>> slightly better parts in it, like 4 slug tuned inductors for the LO?
>>
>>
>> -- 
>> end
>>                           ---oo) :-) (oo---
>> Blessed Be!
>>        - Kirk Bailey
>>
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>
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