[Heathkit] HR-10 IF leakage

[Tom NØJMY - AAR7FV]

That's what you get for doing your rig-swapping with shady characters ;^) 

Did you try swapping tubes between the different rigs?

73,
High-Risk Tom

Robert Nickels wrote:
> Wonder if anyone has noticed 1680 khz IF feedthru with the HR-10 on 75 
> meters?  I hear it on my HR-10 (plain) but the circuit for the HR-10B 
> is the same as far as I can tell.   I tried a quick series trap but it 
> attenuated the 75 meter signals way too much.  I'm not hearing it on 
> 40 and up, probably because the antenna circuit provides enough 
> rejection.
>
> By the way, I increased the value of the coupling cap feeding the AF 
> Gain pot - Heath used only 500pf which made the audio sound pretty 
> tinny.  Easy mod if you like a little more robust audio.
>
> 73, Bob W9RAN
>
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