[Hallicrafters] Hallicrafters S-40A

[Richard Knoppow]

----- Original Message ----- 
From: "theron" <foureyes779 at gmail.com>
To: <Hallicrafters at mailman.qth.net>
Sent: Monday, March 18, 2013 3:01 PM
Subject: [Hallicrafters] Hallicrafters S-40A


> Good afternoon,
>
> Just finished recapping a S-40a and having a small problem 
> with it. When
> you first turn the radio on it pops and crackles really 
> loudly for 30-60
> seconds or more, even with the AF gain and Sensitivity all 
> the way down.
> Does this no matter what band or frequency and setting. 
> Would this popping
> and crackling be P/S related or should  I look somewhere 
> else ?
> I am new to working on Boat anchor gear, so be 
> gentle...lol
>
> Thanks es 73
>
> Don W7DTG

     If you hear it with the audio gain down it isolates it 
to the audio and perhaps the detector sections. I would 
first check to see if you have an electrolytic in with 
reversed polarity.  Can also be a bad resistor.  Recheck you 
wiring in this section.


--
Richard Knoppow
Los Angeles
WB6KBL
dickburk at ix.netcom.com