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Re: [TenTec] Low Pass Filter

To: tentec@contesting.com
Subject: Re: [TenTec] Low Pass Filter
From: "Dr. Gerald N. Johnson" <geraldj@storm.weather.net>
Reply-to: geraldj@storm.weather.net, Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Tue, 20 May 2008 15:49:42 -0600
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
On Tue, 2008-05-20 at 14:18 -0400, Rick Denney wrote:
> Bob Close writes...
> 
> > Trombone players exhibit stronger parallels to CB operators--they tend to
> > use "sliders" to change frequency.  :)  Now, trumpet players....they are
> > old-school, since they use three valves.  I wonder where a harmonica player
> > fits in the picture.  Probably solid state, since they make music via motion
> > of airflow over holes. as opposed to electron movement........oh, shut up.
> > :)
> 
> A trumpet is a partial trombone. To make those three valves work, you
> have to push the first and third valve slides in and out to correct
> all the errors of having only three valves.
> 
> My F tubas have five valves and those are still not enough to play in
> tune through the whole lower register. The trumpet section in my band,
> though, has never seemed all that concerned about playing in tune.

So you reach over with your free hand a slide the slide tuner in and out
to fix the remaining errors. Many I've seen (but not mine) slide as
easily as a trombone slide. My old Eb big bore Holton tuba has worn
valves that are not in perfect alignment and its tone is not well
centered. I have to lip (and can lip nearly a half step each way) each
note to correct for the leaky and misaligned valves. Need to get it a
valve job or find another horn. If I had the space maybe a Conn 24J or
25J.
> 
> Okay, that's about as much trouble as I can get myself into for one
> day.
> 
> (When studying for the Extra exam, all the questions about impedance
> and antenna resonance became routinely simple once I turned the
> antenna into a bugle in my head. After acing the exam, one of the VE's
> commented that I must have a strong electronics background. I do have
> some professional experience with wireless communications, but I
> answered, "No, I'm a tuba player." He's probably still wondering what
> that means.)
> 
> Rick, KR9D
> 
He'll never understand, but I do.

73, Jerry, K0CQ

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