[Elecraft] K3 Voltage drop

[Lee Buller]

This really got me curious.  I was in the NAQP RTTY Contest.....and decided to 
look at the voltage on my K3.  I checked the meter on the RM-35A, but those 
meters are not very good.  The volt meter says 14.5 volts.  NaH!    So, I went 
to the K3 internal meters and got the following

100 watts out
22.5 amps
11 volts

13.8 volts key up.....

11 volts seems low to me.  So, I might have to do some checking out as well.

Lee
k0WA


 In our day and age it seems that Common Sense is in short supply.  If you don't 
have any Common Sense - get some Common Sense and use it.  If you can't find any 
Common Sense, ask for help from somebody who has some Common Sense.  Is Common 
Sense divine?

Common Sense is the image of the Creator expressing revealed truth in my mind. 
-  John W. (Kansas)

Never interfere with anything that isn't bothering you.






________________________________
From: Ron W3ZV <w3zv at verizon.net>
To: Elecraft <Elecraft at mailman.qth.net>
Sent: Sat, February 25, 2012 5:55:59 PM
Subject: [Elecraft] K3 Voltage drop

Okay, confession time. My VFO B display area rarely displays anything but 
frequency. Doing the NAQP RTTY today, I had a brief attack of curiosity. Wanted 
to see how the PA temperature was doing. On the way I passed the voltage display 
and stopped for some reason. Noted that the voltage on RX was 13.6. Dropped to 
12.6 with 75 watts RTTY TX. Supplied power cord to an Astron RS-35M. I am 
concerned that the drop may be excessive. I'd like to make sure that there is a 
problem before I start tearing into things. Cause for concern?

Ron W3ZV
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