assuming that you
are seeking to measure the full current drawn by the BITX, you
need to remove one of those positive wires, either that
attached to the rear power plug or the switch - in fact either
of the switch positives- and then insert your meter place of
that wire. Current measurements need to be taken in series
connection, that is with the supply current flowing through
the meter.
Bill, VK7MX
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On Mon, Dec 18, 2017 at 03:29 pm, William R Maxwell wrote:
I'm one of those mystified
by those low current readings of 10-20 milliAmps. We know
you are using the 10 Amp setting on your meter but where
exactly are you taking those measurements, i.e. where are
you placing the meter probes?
Sorry....blew the engine in my work truck so I'm a little late
to the party tonight. I'll do everything everyone told me to do
and see if I can answer anything or, at the very least, give
good descriptions of anything abnormal I find.
Ok...this is how I've wired it up: DC power plug in back. I
hook a 12 volt battery up to it. It's got a really good charge.
5.2 amp hour battery. On the negative side of that plug, all the
negatives connect except, as already indicated, the antenna and
that switch. I took a wire and soldered to the positive there
and run it to the front of the lunchbox (I'm saying front and
back...they're the sides of the lunchbox, but I've oriented it
so the top (where the handle is) and the bottom are clear...so
it can be carried and sat down like a normal lunchbox). That
wire goes to one lug on the on/off switch. All the positives
connect to the other lug. So, everything gets power when I turn
the on/off switch on and it cuts power when I turn it off.
I'm getting that .01 and .02 reading by touching the positive
on the rear lug and the positive that everything is connected to
on the on/off switch.
