[Elecraft] Re: K2 VCO alignment trouble

[Jeff Kinzli]

17 turns on T5 might do it ;)

I found that if I tuned down to around 3800 then it was within range, which prompted me to recount the turns on T5 and I found one extra turn under the secondary winding. I'll pull that one out but I bet that's it.

There I go again, airing my dirty laundry :)

Cheers,

-J

On Tue, Jan 16, 2007 at 11:07:22PM -0500, Jeff Kinzli wrote:
> A little more investigating...turns out the voltage on R30 is much lower (4V, +/-) on other bands except 80M. On 80M, it's still at the 8v rail no matter where L30 is adjusted...
> 
> I've verified and reverified that T5 is good, and moved the coils around with no change on 80M and R30's voltage. 
> 
> Anything else to check?
> 
> -J
> 
> On Tue, Jan 16, 2007 at 09:36:41PM -0500, Jeff Kinzli wrote:
> > Ok, I'm at VCO alignment now :)
> > 
> > Problem is that moving L30's slug around doesn't change the reading on R30, it stays at 8V. My T5 *looks* good to me. The manual says refer to troubleshooting but I didn't see anything there that would get me in the ballpark.
> > 
> > I've checked solder joints in the vicinity and don't see anything obvious. I've searched through the archives and the only hit I see is someone who had a bad solder joint that would cause the voltage on R30 to be at the 8V rail.
> > 
> > Any more ideas?
> > 
> > Thanks,
> > 
> > -J