[Elecraft] [K2] KSB2 Module Question

Brian Handy holy_tire_iron at yahoo.com
Sat Mar 16 09:30:45 EDT 2013


To answer my own question, the problem was in T1.  I didn't look at it in detail but clearly something was up; I re-wrapped it and now I'm getting all kinds of power!

Thanks to the individual who replied off-line with this hint!!

Cheers

Brian AEJ7W


________________________________
 From: Brian Handy <holy_tire_iron at yahoo.com>
To: "elecraft at mailman.qth.net" <elecraft at mailman.qth.net> 
Sent: Saturday, March 16, 2013 10:27 PM
Subject: [K2] KSB2 Module Question
 

Dear Readers,

I am right now working on the KSB2 module.  It's built, been installed into my K2, and I was able to hear a few stations with it.  This gave me a false sense it was working, which is not actually true.

I now find that when I put the K2 into TUNE with this gizmo installed, I don't make power:  set 5W on the dial, and get 0.1 indicated when I hit the TUNE button.  I started going back through the DC measurements in RX mode and have turned up the following:

U2-5:  6V (should be 0.6)
U4-3:  6V (should be 0.6)

These are the ALC THR voltage, seemingly coming out of U2.  I looked up the specs for U2 and I'm not quite sure what to do with this information.

What does this potentially mean?


Cheers

Brian Handy AE7JW


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