[Elecraft] K3 Current Drain When Off
Stephen Prior
eastbrantwood at gmail.com
Sat Oct 19 04:40:08 EDT 2013
My Fluke 73 reads 4.3mA on the 300mA range and 40mA on the 10A range, which
just goes to show that you can't trust the reading on an instrument when
the 'full scale' value is so very much higher than the current that you are
trying to measure.
73 Stephen G4SJP
On 19 October 2013 07:45, Bill Frantz <frantz at pwpconsult.com> wrote:
> When I tried measuring in the negative lead, I found zero amps. The
> problem is that the grounding system in my station setup bypasses the
> negative lead, probably in several ways, letting me power the K3 up with no
> connection to the negative power supply lead at all.
>
> Cheers - Bill, AE6JV
>
>
> On 10/18/13 at 4:51 PM, jim at audiosystemsgroup.com (Jim Brown) wrote:
>
> If you're talking about me, the false readings I was getting from the
>> Watts Up meter were in the range of 40 mA, and a Fluke measured 4 mA in the
>> positive lead. There may, however, be something happening on the negative
>> lead that is causing the false readings. I don't have a fixture yet to put
>> a Fluke there. I should do that.
>>
> ------------------------------**------------------------------**
> -----------
> Bill Frantz | Concurrency is hard. 12 out | Periwinkle
> (408)356-8506 | 10 programmers get it wrong. | 16345 Englewood Ave
> www.pwpconsult.com | - Jeff Frantz | Los Gatos, CA 95032
>
>
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