[Elecraft] L31 10 uH vs 12 uH (was: K2 #4830 IS ALIVE)

[Ken K3IU]

Hi Mike:

Well, I don't know what the statistics are on the batch of crystals that are
being shipped, but I'd give the 10uH a try and see what you get. All you
need is 9.8. I had 9.5 and someone else I know had 9.7. However, I'd bet
that there are numerous K2s out there that came in >= 9.8. So.... I'd
recommend installing what you have. If it doesn't quite make the grade, than
you can get a 12 uH from Elecraft. In the meantime, the marginal range
should probably work until you get the replacement from Elecraft. It is easy
to replace, but don't forget that you'll have to run CAL PLL after you put
the new one in and then re-do the CAL FIL after the CAL PLL.

GOOD LUCK & Have Fun!!!

73,
Ken K3IU
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Mike Markowski
Sent: Thursday, March 24, 2005 9:40 AM
To: elecraft at mailman.qth.net
Subject: Re: [Elecraft] L31 10 uH vs 12 uH (was: K2 #4830 IS ALIVE)

Good going, Ken!  Can't wait till I'm saying the same about #4834.

I've noticed a few notes regarding L31, and I'm not at that point yet in my
K2 build.  It seems the concensus is that 12 uH should be used rather than
10 uH in the notes I've read, so I wonder why the kitted component was
changed.  Any recommendations on whether or should use 12 uH from the start
or better to try the supplied one first?

Thanks,
Mike  AB3AP
Avondale, PA

Ken K3IU wrote on 03/23/05 19:13 ET:
> Hi Gang:
> 
> Finished up the basic K2 (S/N 4830) this afternoon with no problems 
> except for the VCO range which was below minimums. Fortunately, I had 
> a 12uH inductor for L31 from an earlier project so that went in and 
> solved the problem.