[Elecraft] Day 1: Fried something already?

[Owen B. Mehegan]

Hi Don -

I've just had a look at K12 and I think it may be the culprit. First I  
turned the K2 on, tuned it to 40m, then turned it off and unplugged  
everything. I'm not positive I've got the pin numbering right, but no  
two adjacent pins on a side have continuity right now, so I think the  
diagnosis is correct. Looking at the relay from the top, I'm assuming  
that the bottom left pin, when viewed with the writing right side up,  
is 1. So when I flip the board over and look at the bottom with the  
coax and power connectors pointing away from me, pin 1 is the top one  
on the right of the two columns. I.e.:

(10) *  * (1)
(9) *  * (2)
(8) *  * (3)
(7) *  * (4)
(6) *  * (5)

If this sounds right, I'll go ahead and order a replacement relay and  
hope that's my only problem.

--
owen at nerdnetworks.org (Owen B. Mehegan)
'When I was in sixth grade many years ago, I passed out after gym  
class one day. When I woke up, I had vivid memories of cartoonish  
bananas dancing around a red pool of blood, chanting 'E equals MC  
squared' over and over.'
   --Poster to ask.metafilter.com

On Nov 7, 2010, at 1:28 PM, Don Wilhelm wrote:

> Owen,
>
> You have the procedure correct.
>
> Yes, the caution about lifting one lead of T4 was if you want to  
> investigate the relay further.
> Because of the ground at the secondary of T4, if the relay is set,  
> you will see zero ohms between all the pins except for the coil -  
> that should not surprise you.
>
> 73,
> Don W3FPR