[Elecraft] K3 Voltage drop

[Wayne Burdick]

This is not unusual, Ron. The power cable, several connectors, PCB  
traces, current-sense resistor, and even the power supply itself all  
contribute some small drop, and a total of 1 V or so sounds about right.

73,
Wayne
N6KR

On Feb 25, 2012, at 3:55 PM, Ron W3ZV wrote:

> 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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