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Date: | Wed, 19 Mar 2008 16:23:41 -0600 |
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you can do that, but as has already been said, you won't always be tuning to
the same place on the dial depending on different factors.
You can nearly always get very close when you tune for the greatest noise
floor. As long as an antenna is hooked up, you can tune the plate and grid
knobs until you get the loudest atmospheric noise.
You'll be pretty close then, not quite perfect as in my experience.
Sometimes the receiver and the transmitter seem to be not quite the same and
you have to loose a bit of receiver sensativity in order to get full tx
output.
But, that is ok since you can only run 10 watts anyway. just tune for the
greatest noise level on what ever frequency, turn the rf power nearly off,
so it's perhaps 1 fifth of the way up, and you'll probably be pretty close
to your operating power.
73
Colin, V A6BKX
----- Original Message -----
From: "Shaun Oliver" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, March 19, 2008 6:55 AM
Subject: valve radios revisited
> Hi all, is it possible to put tactile markings around the plate and grid
> knobs on a valve radio for point of reference in the event one is unable
> to aquire a tone osilator for tuning purposes?
> I don't want to limit myself to just one solution as I might not be able
> to aquire a tone osilator or find someone to install one should I find
one..
> if it's a bad idea, please let me know. I'm just exhausting all
> possibilities.
> I did once use to use a heavily attenuated receiver for tuning, and it
> seemed to work.
>
> --
> Shaun
> web sites:
> http://www.myspace.com/blindmanshaunoliver
> http://blindman.homelinux.org/~blindman/
> msn: [log in to unmask]
> yahoo:: blindman01_2000
> skype: brailledude
>
>
>
> --
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8:10 AM
>
>
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