[Hallicrafters] Aligning a S-76

Ken And Susan Hittson via Hallicrafters hallicrafters at mailman.qth.net
Thu Aug 13 00:40:21 EDT 2015


Thanks Jim
I can try listening at the 1650kc freq, and I also can try using a small (goIt)  frequency counter, that has a whip antenna to measure the frequency of the 2nd mixer. One thing I found, is that if I dangle a test lead off of T1 term 1, the radio plays thru the speaker (normally) like it is cross-talking between the stages. If I move the dangling test lead loop toward V8 the radio plays very clearly. Removing the test lead results in a quiet radio. 
Thanks Ken



> On Aug 11, 2015, at 1:30 PM, Jim Liles <hallicrafterssr2000 at k9axn.com> wrote:
> 
> Ken,
> 
> Try something before again removing the sub chassis.
> 
> Turn L6 back and forth.  If that oscillator is not very close to 1650Kc, you will measure nothing.
> 
> If you have a another radio put the antenna near the under chassis and tune to 1650Kc to see if the oscillator is running and at what frequency.
> 
> Regards Jim
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