[Boatanchors] James Millen Tone Modulator #90751

[Bob Sullivan]

Jeff,

Very good. You can find and download a manual for this 90751 at the Millen 
society website;
http://www.qsl.net/jms/. Be patient - the site is VERY slow ...

73, Bob
WØYVA
My station: http://www.isquare.com/personal_pages/hardware-14.htm


At 08:14 PM 11/8/2004, n2lxm at juno.com wrote:
>Greeting's All,
>
>
>         I just received from the  "E " place an James Millen Tone
>Modulator Model Number 90751. Dose anyone have a manual or any type of
>documention for this little gem. All  found on the web was a schematic,
>what I really need to know is what  battery was used in it. From the
>schematic it appears to be a 22.5 volt Mercury type.  For those of you
>who own Grid-Dip Meters, this little gem plugs into the phone jack on the
>GDO and modulates the RF with an appox 880 Hz tone, this makes finding a
>signal a little easy'er. The funny thing is I just completed a modern
>version of it using an LM1458. I built mine into an die-cast box, with a
>spst push button switch to turn it on when it's plugged into the GDO. If
>anyone wants the information on how I built mine, I can send a couple of
>photo's and a scan of the schematic. Just drop me a note.  Thanks for any
>and all help.
>
>
>
>
>                                          Jeff N2LXM
>                                           American
>                                             Patriot
>                                 Amateur Radio Operator
>                          Proud Father of Two U.S. Marines
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