I've tried doorknob caps, they get hot, drift and I've had a couple explode!
I've used air variables, they work well until a bug crawls between the
plates.
I finally gave up and went with vacuum variables - work great, no issues!
BTW, I've got four vacuum variables listed on QTH.COM right now at
reasonable prices.
Three at $50 each under "Miscellaneous"
And
One motorized for $100 listed under "Antenna Tuners"
73
Lloyd - N9LB
-----Original Message-----
From: Topband [mailto:topband-bounces@contesting.com]On Behalf Of Pete
Smith N4ZR
Sent: Thursday, January 24, 2013 1:34 PM
To: topband@contesting.com
Subject: Topband: alternative to vacuum variables
One of the reasons I have mot gone to high power on 160 is the cost of
capacitors for my omega match - at least $300. Anyone know of any
workable alternative? I remember someone writing about using coiled-up
RG-8, RG-213 or maybe Teflon coax. Where can I find more information?
--
73, Pete N4ZR
Check out the Reverse Beacon Network at
http://reversebeacon.net,
blog at reversebeacon.blogspot.com.
For spots, please go to your favorite
ARC V6 or VE7CC DX cluster node.
_________________
Topband Reflector
_________________
Topband Reflector
|