The problem is not with the voltage, but with the RF current. The doorknobs
in my article have a 15 Amp rating and they're not very expensive if you buy
them on e-bay.
http://n6ie.com/Ten_Tec_238.html
Ron N6IE
www.N6IE.com
----- Original Message -----
From: "Rob Atkinson" <ranchorobbo@gmail.com>
To: <tentec@contesting.com>
Sent: Tuesday, December 29, 2009 3:53 PM
Subject: [TenTec] 238 caps
> Instead of doing the tuner cap mod with doorknobs why not simply use
> higher v. disk ceramics? Mouser has 8 KV 470 pF for around 50 cents
> each. You can get four 100 pF 10 KV caps and string them together in
> series for the 25 pF on the output for a heck of a lot less than a
> doorknob (I say that because that's what I quickly found at mouser to
> get 25 pF and high v.). Plus no probs fitting and mounting them.
> Looks to me like the prob. with the stock caps on 160 is that they're
> 2 KV (probably less on that low a frequency) if I am not mistaken.
>
> I admit I added an extra load padder cap to my Centurion on 160 that
> was a doorknob but that was mainly because I had it on hand and there
> was room. I would not want to buy them unless I could get them for a
> few bucks each at a hamfest.
>
> 73
> Rob
> K5UJ
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