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Re: [TenTec] 227 Tuner Replacement

To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Subject: Re: [TenTec] 227 Tuner Replacement
From: Ken Brown <ken.d.brown@hawaiiantel.net>
Reply-to: ken.d.brown@hawaiiantel.net, Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Sun, 11 Nov 2007 09:15:53 -1000
List-post: <mailto:tentec@contesting.com>
Hi Ron,


 I now have a wire
going almost vertical about 60 feet into the tree, and then another 50 feet
down to another tree.
Add some more wire, even if you cannot get the additional wire stretched out straight or high off the ground, until the total wire length is closer to a full quarter wavelength long.
Problem is... well, my trusty little 227 tuner will tune it on 160. Just
barely.
Or you could extend the tuning range of your 227. Which component in the tuner is set to maximum? If it is a capacitor, add some parallel capacitance to it. If it is an inductor, add some series inductance.
So the time perchance has come to suppliment or even replace the 227 with
something else.  Power is not a major concern at present -- I have no
amps
If you invest in a tuner that can handle higher power, it will also likely be more efficient at the power level you are presently running, and when you do get an amplifier someday, you won't be wishing you had bought the bigger tuner.
-- but enough built-in inductance to cover 160 is.

Anyone have any suggestions on what to look for on the used market for a
reasonable cost?
I really like my TT 238 except for the dial string problems I have had with it. Seems like they can be had for roughly $300 plus or minus, depending on condition.

You'll might have more fun scrounging for parts at hamfests and building your own. I suggest the 238 as a model, basically an L network with series inductance and shunt capacitance switchable to either input or output side. You can use clip leads (good ones. Build them yourself from Mueller, Pomona or other quality alligator clips. Don't waist money on cheapo clip leads) instead of a switch, and it doesn't really need to be in a box.

DE N6KB

DE N6KB


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