TNX Ed
Your description is actually simpler than I was thinking.
Howard
----- Original Message -----
From: "Ed Malmgren" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, August 18, 2011 1:00 PM
Subject: Fw: Rotor control
> Howard, 1961 is a long time back but as I remember it is a Heartly
> oscillator which makes the audio. Then there is a calibrated circuit
> using
> a wire wound pot. You turn it on and there is a pointer on the pot and
> you
> turn the antenna until the tones match. By flipping a switch then qrt
> turning the antenna and your there. Yes this is across an analogue meter.
> Does this make any kind of sense? Other than the calibrated pot you
> have
> the right idea. 73
> Ed K7UC
>
> --------------------------------------------------
> From: "Howard, W A 9 Y B W" <[log in to unmask]>
> Sent: Thursday, August 18, 2011 10:32 AM
> To: <[log in to unmask]>
> Subject: Re: Rotor control
>
>> Hi Ed,
>>
>> Would you give me a description on how this circuit works? In other
>> words,
>> do you compare tones to indicate the position of the meter? Are we
>> talking
>> about a control box that has an analogue meter? I'm thinking that one
>> could
>> build a circuit that increases in pitch as a meter needle moves from far
>> left to far right and then build fixed tone circuits to indicate the tone
>> for north, south, east, west, etc.
>> When the tone indicated by the meter position equals, say the south tone,
>> then you are pointed south.
>>
>> Does this make sense?
>>
>> Howard W A 9 Y B W
>>
>>
>>
>> ----- Original Message -----
>> From: "Ed Malmgren" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Thursday, August 18, 2011 10:48 AM
>> Subject: Re: Rotor control
>>
>>
>>> Mark, When I build something I doubt anyone could follow my wireing jobI
>>> have modified it a time or two so probably no way. Sorry. 73
>>> Ed K7UC
>>>
>>> --------------------------------------------------
>>> From: "mark" <[log in to unmask]>
>>> Sent: Thursday, August 18, 2011 9:26 AM
>>> To: <[log in to unmask]>
>>> Subject: Re: Rotor control
>>>
>>>> Hi
>>>> Any way you could reproduce the diagram or circuit?
>>>>
>>>> God bless,
>>>> Mark
>>>>
>>>> God Loves you!
>>>> You can visit my website at:
>>>> http://christiantraditions.info
>>>> Please visit my Prayer page at:
>>>> http://christiantraditions.info/mailman/listinfo/prayerlist_christiantraditi
>>>> ons.info
>>>>
>>>> -----Original Message-----
>>>> From: For blind ham radio operators
>>>> [mailto:[log in to unmask]]
>>>> On Behalf Of Ed Malmgren
>>>> Sent: Thursday, August 18, 2011 8:08 AM
>>>> To: [log in to unmask]
>>>> Subject: Rotor control
>>>>
>>>> Keith, I use a circuit that I got the schematic from the Braille Tech
>>>> Press
>>>>
>>>> way back about 1961. It is a comparator circuit and goes across a Ham
>>>> 4
>>>> control box meter. It looks crappy but has worked since. Wish I still
>>>> had
>>>> that book with the circuit. 73 Ed K7UC
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