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[Amps] sb-220 80 meter output cap ??

To: amps <amps@contesting.com>
Subject: [Amps] sb-220 80 meter output cap ??
From: Dan Sawyer <dansawyer@earthlink.net>
Date: Sun, 22 Feb 2004 18:34:57 -0800
List-post: <mailto:amps@contesting.com>
All,

Wow!! The journey to understand and incorporate this amp has been problematic. The first symptoms seemed to point toward a total amp problem such as very weak tubes. However it was a trail a winding and is more likely a set of three or so medium issues including 'somewhat weak tubes'; what looks like a bad switch, and bad input SWR on 10 meters.

This post is about tuning 80 meters. 40, 20 meters and 15 meters tune and amplify input by about 13 db (about 12 m on 15.) However 80 meters does not tune. The load cap is fully engaged and the amp only yields about 10 db. What is the proper rating for the 80 meter parallel cap??

Thanks,
Dan




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