[NJARC] NJARC Digest, Vol 110, Issue 3

[Walt Heskes]

Steve: Shunt the primary coil of the 455KHz IF with a 27K resisitor. Works every time. 

iMail from Walt's iPhone

On Jun 5, 2013, at 12:00 PM, njarc-request at mailman.qth.net wrote:

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> _______________________________________________
> Today's Topics:
> 
>   1. Need help with open IF coil... (sgt88 at atlanticbb.net)
>   2. Grunow IF... (sgt88 at atlanticbb.net)
> I have - for me - a very serious problem = my Grunow console # 1297 "Discriminator Trans" #36451 - between the 2nd IF and 2nd Det/AVC-  has an open primary coil!!
> 
> From what I've read, this is a commom problem...and the IF trans' in this radio are unique due to the center tap winding in the secondary....not allowing a simple substitution from another radio!
> 
> If I can't find a direct replacement...I'll be required to wind my own!!...rots of ruck!
> 
> Suggestions ( really, really ) needed.
> 
> Tnx,
> Steve T.
> 
> 
> Been thinking....the open coil is the primary...NOT having the center tap...
> 
> Might I 'work/cut/modify' the pole structure by implanting a 'standard' IF primary coil set ( my primary has two coils in series ) from another IF can?
> 
> 
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