[Lowfer] My variometer resistance
Richard Goodman
wa3usg at verizon.net
Fri Oct 24 17:14:27 EDT 2008
Okay Andy ... we're going to try again tonight! I'm running QRSS30 and
listening hard!!
Let's see how that paint can works!
3's on ya
Dick, WA3USG
Mechanicsburg, Pa.
fn10le
-----Original Message-----
From: lowfer-bounces at mailman.qth.net
[mailto:lowfer-bounces at mailman.qth.net]On Behalf Of Andy - KU4XR
Sent: Friday, October 24, 2008 3:46 PM
To: lowfer at mailman.qth.net
Subject: [Lowfer] My variometer resistance
Learning as I'm going, My variometer was the single best thing
I have done for my beacon so far, bringing the greatest gain.
It's a 5 gallon paint bucket, wound with very small wire. I'm
not sure of the guage, maybe #28 to #30 ( 6 stranded solid
burglar alarm wire ). I know small wire has higher resistance,
So I thought it would take fewer turns for a needed inductance.
I measure 9.0 OHMs DC resistance across the variometer, and I am
assuming that's way too high, and have been told by others they
thought it was pretty high. If this question can even be asked
this way; " What is a TYPICAL DC resistance of a paint bucket
variometer ?? " I do consider wire size, material, spacing, etc.
In the how bad do you want it catagory, the current cost of a
500' rool of #14 solid / insulated is around $ 45.00. That's one
reason I used the wire I had on hand for free. Still choking on
the $ 45.00 wire.
Nutshell:: Is 9 OHMs too high ? Is there any such thing as typical ?
Andy - KU4XR - EM75xr - Friendsville, TN.
LOWfer Beacon " XR " @ 184.322 KHz
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