[ARC5] U.S. WW II equipment

[J. Forster]

???

I didn't say there was an external inverter.

-John

================


> I still have an ARN-6 manual and will check it when I can put my hands on
> it, but the best of my recollection says there is no inverter used in the
> ARN-6 setup.  The AC for the loop and indicator comes from the receiver.
>
> 73
>
> Mike
> W4DSE
>
> --- On Mon, 7/1/13, J. Forster <jfor at quikus.com> wrote:
>
>> From: J. Forster <jfor at quikus.com>
>> Subject: Re: [ARC5] U.S. WW II equipment
>> To: "Mike Everette" <radiocompass at yahoo.com>
>> Cc: "ARC-5 List" <arc5 at mailman.qth.net>, "Roy Morgan"
>> <k1lky at earthlink.net>
>> Date: Monday, July 1, 2013, 11:52 PM
>> The inverter was needed to power the
>> loop indicator(s) and servo motor.
>>
>> -John
>>
>> ============
>>
>>
>> > The only low plate voltage tubes in the ARN-6, as I
>> recall, are the 28D7.
>> > The rest are normal 12 volt filament types like 12SG7,
>> etc.
>> >
>> > And, the ARN-6 uses a vibrator to make high frequency
>> AC for the antenna
>> > and indicator selsyns.  Except it's not all that
>> high; maybe 130 cycles if
>> > I remember right.  It's been quite a while since I
>> worked on an ARN-6; but
>> > I remember that it was a darn fine radio... much better
>> than the ARN-7
>> > which it replaced, despite being lower in the
>> nomenclature table.  And the
>> > 6 was a whole lot smaller and lighter.  Plus, it
>> didn't have that
>> > screamin' meenie inverter to provide 115 volts at 400
>> cycles to run the
>> > receiver!
>> >
>> > 73
>> >
>> > Mike
>> > W4DSE
>> >
>> > --- On Mon, 7/1/13, Roy Morgan <k1lky at earthlink.net>
>> wrote:
>> >
>> >> From: Roy Morgan <k1lky at earthlink.net>
>> >> Subject: Re: [ARC5] U.S. WW II equipment
>> >> To: "ARC-5 List" <arc5 at mailman.qth.net>
>> >> Date: Monday, July 1, 2013, 5:19 PM
>> >>
>> >> On Jun 29, 2013, at 5:04 PM, gordon white <gewhite at crosslink.net>
>> >> wrote:
>> >>
>> >> >  ...the Air Corps in early 1933 ... fly the
>> air
>> >> mail in opencockpit biplanes in winter, and had a
>> hard time
>> >> finding Cleveland, while at the same time those
>> terrible,
>> >> "corrupt"  private air lines were doing the same
>> routes
>> >> very well, …
>> >>
>> >> I just read "Wind, Sand, and Stars" by Antoin de
>> Saint
>> >> Exuprey.  He tells about the some 7 years in the
>> 30's
>> >> he was a pilot for the French mail service, flying
>> in Europe
>> >> through (between, not over) the Alps, and later to
>> and
>> >> across Africa.  The reader can get a very strong
>> sense
>> >> of pride and admiration for the abilities, bravery,
>> and
>> >> suffering of those pilots and crew.
>> >>
>> >> He does not say what aircraft they flew, but does
>> mention
>> >> that they had no radios, and depended on lights at
>> the
>> >> landing fields to find their way in.  They
>> apparently
>> >> had damned little survival supplies, according to
>> the tale
>> >> about how they flew into the ground in the desert,
>> and
>> >> walked out for 4 days with no water.  They
>> memorized
>> >> every "stone and stream" of their routes in order
>> to
>> >> navigate.
>> >>
>> >> I have used dead reckoning to get back to the
>> carrier from
>> >> 150 miles away in the mid-Atlantic with all
>> navigation aids
>> >> and radios silent, the ARN-59 to find the beacon
>> on
>> >> Nantucket from the same distance at seat night, and
>> Gulf Oil
>> >> company maps to fly around New England on nice
>> days.  I
>> >> can sympathize with the mail pilots trying to find
>> >> Cleveland.
>> >>
>> >> Boat anchor content:
>> >> The ARN-6 ADF radio used low plate voltage tubes,
>> and ran
>> >> entirely on 28 volts DC.
>> >> Does anyone know of an on-line manual?
>> >>
>> >> Roy
>> >>
>> >> Roy Morgan
>> >> k1lky at earthlink.net
>> >> K1LKY Since 1958 - Keep 'em Glowing!
>> >>
>> >>
>> >>
>> >>
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