This is common. Nothing to worry about.
73,
Eric
elecraft.com
_..._
> On Jun 19, 2020, at 5:47 AM, Rich wrote:
>
> I just received my K3S back from repair and all seemed OK. However it
> appears to draw much more current on 20M than any other band. 22 - 24 amps.
> I have tried two diffe
I'm beginning to believe we're up against a harmless component tolerance
stack-up that's peculiar to the K3S lineup design for 20 meters. For
what it's worth, I've done many hours of pretty hard CW contest
operation with my K3S and it hasn't shown the slightest problem
operationally. What origi
After reading your numbers here I was curious since my K3 is the same vintage
as yours, serial 732, Apr'08. I did a quick check on 20M and I am reading
15.5A, @13.5V (on my Astron 20M meters) at 100W into a 50 ohm dummy load. I
checked other bands and read the following: 160M-15.5A, 75M-14A, 4
FWIW, my old K3 (Nov'08) only pulls 17.8Adc at 12.5V for 100W into 50ohm dummy
load at 14MHz.
Seems to follow your PA temp is gonna run hotter also. WHY such poor
efficiency Elecraft, (Wayne) ?
73,Mike, AC5P
On Friday, June 19, 2020, 12:03:45 PM CDT, Randy Farmer
wrote:
Mine does
Mine does exactly the same thing. I even ran it through factory service
to be sure there wasn't a problem with the LPF module that might be
causing trouble. They calibrated it and returned it with a clean bill of
health. It still draws significantly more current on 20 than on any
other band.
I just received my K3S back from repair and all seemed OK. However it
appears to draw much more current on 20M than any other band. 22 - 24
amps. I have tried two different 20m antennas and a dummy load.
All other bands are 20 amps or lower. Some as low at 17amps.
Power Supply voltage per
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