I think the cost calculation was the bigger driving force in that decision!
Ron N6IE
www.N6IE.com
----- Original Message -----
From: "Jim Brown K9YC" <[email protected]>
To: "Discussion of Ten-Tec Equipment" <[email protected]>
Sent: Tuesday, March 04, 2008 7:45 AM
Subject: Re: [TenTec] 238 Tuner Mod
On Tue, 4 Mar 2008 09:55:27 -0500, Jack Mandelman wrote:
However, instead of using
doorknob caps I replaced the originals with 6KV 470pF Y5P ceramics.
It's no surprise that the original caps, which have a fairly high
negative temperature characteristic, change value as they warm up --
they are SPECIFIED to do that. :) I'm wondering if it was a pricing
decision by Ten Tec to use them, or if the designer was attempting
to compensate for heat-related drift in the other direction by the
inductor?
73,
Jim K9YC
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