[Elecraft] K2 no receive . . . where to start?

[Don Wilhelm]

Mike,

Glad you found the problem source and corrected it.  Yup - the IF filter 
will not work with those varactors backwards!  I don't know how you had 
any receiver function at Alignment and Test Part II if those were 
installed backwards.

73,
Don W3FPR

Mike Geddes wrote:
> Thanks for all of the good advice!  The readers and contributers to this 
> reflector are a great resource and a wealth of good information.  I 
> think I discovered the problem, and it is rather simple. For some reason 
> I had reversed some of the 1SV149 diodes, specifically D30, D31, D32, 
> D33, and D29. Kind of a bonehead thing to do, not sure how it happened.  
> I have a theory . . . . after I stuff the board with a qty of 
> components, I use blue masking tape to secure the parts prior to 
> flipping the board over (in my pc board holder) and soldering. These 
> could have fallen out, and I was careless sticking them back in prior to 
> soldering.  Or . . . I could have just stuck the little buggers in the 
> wrong way in the first place!  You have to pay attention to those thin 
> TO-92 packages.  Anyway . . . pulled a lead off of one when removing it 
> so will order a couple more and see how it works.
> 
> Thanks again for your help.
> 
> 73,
> Mike
> N4JX