Be careful. The power is on to the finals even when the K3 is turned
off. Therefore, if the finals short, they can overheat leading to all
sorts of issues. Trust me, I found out the hard way. Mine was drawing
2 amps with the K3 turned off.
I make it a habit now to turn off the power supply when I am not around.
Buck
k4ia
On 10/16/2013 3:59 PM, Fred Jensen wrote:
K3 #642 measures just over 4mA when off. FT-847 reads 12mA. However,
with both those loads on the FP-1030A power supply, it appears to be
consuming about 3wH [72 watt-days/26.28 kw-years], apparently just to
light the little LED on the panel. In fact, it's very close to 3wH
with all the loads disconnected. Our highest marginal PG&E rate is
$0.34/kWh which works out to $8.94/yr max.
Maybe a "leak" outside the K3(s)?
It does raise the question, just how many electrons are being wasted
in the TV, DirecTV receiver/DVR, microwave, and the myriad of
phone/Kindle chargers plugged in all over the house, not to mention
this computer which is on nearly all the time? I suspect it's a lot
more than 9 bucks a year.
73,
Fred K6DGW
- Northern California Contest Club
- CU in the 2014 Cal QSO Party 4-5 Oct 2014
- www.cqp.org
On 10/16/2013 12:15 PM, Jim Brown wrote:
Nope. I measured both units several times, and just now repeated the
measurements.
73, Jim
On 10/16/2013 11:23 AM, Eric Swartz - WA6HHQ, Elecraft wrote:
Hi Jim - you must be misreading the meter by several decimal points :-)
We just measured several K3s in the lab and they both draw less than 5
mA when off.
Eric
elecraft.com
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