How about showing us a pic of the interior.
Bob W6TR
----- Original Message -----
From: "Paul Christensen" <w9ac@arrl.net>
To: "Amps Amps" <amps@contesting.com>
Sent: Thursday, September 14, 2006 9:36 AM
Subject: [Amps] Bliss Motarized High-Power Tuner
> Some of you may know that John Bliss (W5EOE) manufactures a high-power
> (and hence the AMPS tie-in), motorized antenna tuner for balanced lines,
> but I thought some of you would be interesting in seeing a couple photos
> of a tuner that I had John make to my specifications. What's somewhat
> unusual is that the wattmeter portion departs from that normally employed
> in most commercially-manufactured tuners:
>
> http://216.229.20.37/images/Bliss-Tuner-1.jpg
>
> Note that a dual Bird Thruline section is used to simultaneously monitor
> incident and reflected power. The meters and Thruline section were
> cannibalized from a surplus Bird 4526 meter panel. I wanted the ability
> to monitor both reads at once, but I detest the "ricey" look of
> cross-needle meters. Here's a close-up image of the metering that shows
> the Bird name-plate added.
>
> http://216.229.20.37/images/Bliss-Tuner-2.jpg
>
> The remote balanced network uses a variation of the AG6K design, but a
> pair of Jennings RS-6 vacuum relays are used to form a quasi "knife
> switch" for the open line. The open line vacuum relays are only energized
> when the tuner is powered. Over the weekend, I'll try to take some
> internal pictures of RF network.
>
> Disclaimer: I am in no way affiliated with John Bliss, nor his company --
> and this post is not meant to be a product review nor an advertisement for
> his products and services.
>
> Paul, W9AC
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