[AMRadio] Fw: determining frequency of a transmitter?


Joe Crawford crawfish at surfmore.net
Mon Mar 17 19:04:14 EST 2008


Howard's transmitter is probably operating on 10 meters. My plug-in coils 
for 10m have about that many turns.
                                                   Joe W4AAB
----- Original Message ----- 
From: "Mike Duke, K5XU" <k5xu at comcast.net>
To: "Discussion of AM Radio" <amradio at mailman.qth.net>
Sent: Monday, March 17, 2008 4:38 PM
Subject: [AMRadio] Fw: determining frequency of a transmitter?


>A friend recently posed this question to me.
>
> Since there are builders here who know far more about tank coils than me, 
> I,
> yield to the experts.
>
>
> Mike Duke, K5XU
>
>
> ----- Original Message ----- 
> From: "Howard Traxler" <htraxler2 at EARTHLINK.NET>
> Sent: Monday, March 17, 2008 7:09 AM
> Subject: determining frequency of a transmitter?
>
>
>
> recently I purchased a transmitter--home brew.  There is no designation of
> what frequency band it operates.  It is a plate modulated 807, crystal
> control (oscillator tube missing).  The output tank has some rather small
> tuning capacitors and a air wound coil about an inch in diameter and maybe
> eight turns at about half inch spacing with a tap a couple turns from one
> end.
>
> Any ideas?  Thanks
>
> 73, de Howard, WA9RYF
>
>
>
> -- 
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> 10:34 AM
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>
>
>
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