Just purchase them, they're not expensive. For example:
www.antiquelampsupply.com/3-8-dia-brass-ball-tap-6-32f.html?gclid=EAIaIQobChMI_auMy7GI5QIVho7ICh2C4wEvEAQYAyABEgJFGPD_BwE
73
Frank
W3LPL
----- Original Message -----
From: "Jeff Blaine" <KeepWalking188@ac0c.com>
To: "topband" <topband@contesting.com>
Sent: Sunday, October 6, 2019 6:27:58 PM
Subject: Topband: spark gap construction ideas for 160m tower
I need to add a spark gap of some sort onto my full-size 160m
insulated-base tower. Looking for ideas.
Making the spark gap is simple. What has me asking for ideas is the
weather element - we have a lot of snow, ice, rain here and a spark gap
needs to keep that stuff off. But put a little cover over it, right?
Well, yes but if the cover is not fully enclosed, then you have wasps
and spiders making nests there. If it's enclosed, then you have
condensation and ants.
I like the idea of W8JI's two balls close to each other - the surface
area is large so accumulated pitting won't change the spacing and thus
the BDV much. And the water will drain off away from the contact
points. But what does a guy make that out of if he does not have a set
of brass balls in his junkbox.
73/jeff/ac0c
alpha-charlie-zero-charlie
www.ac0c.com
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