[Lowfer] Good copy of WE

Tue, 14 Jan 2003 21:21:05 -0600

Thanks. I will do that. I have some nice .1-ohm 1% resistors waiting for
that purpose.

Mike>WE0H
http://www.we0h.us/lf

-----Original Message-----
From: [email protected] [mailto:[email protected]]On
Behalf Of Bill Ashlock
Sent: Tuesday, January 14, 2003 8:25 PM
To: [email protected]
Subject: RE: [Lowfer] Good copy of WE

Mike,

>I still don't have a current probe built for the vertical. I have to >get
>gong on the building before it warms up again.

All you have to do is monitor the Vcc current since the efficiency of the
output stage is near 100%. Can't remember if your power supply is located
outside or not. If it's outside, you my have a couple of wires available
going back to the shack in which you can measure the drop across a 10 ohm
resistor. I think you will be amused at the changes in current. I'll have to
take a digital pix of my daily input current from the chart recorder, even
though it's not as variable as typical vertical. As soon as the sun comes
out in the morning there's a quick drop, probably the result of the melting
water in the top layer of snow, that becomes conductive. The current heads
back up when the sun is under a cloud.

Bill