[Milsurplus] A.E. Project ( If you accept this mission )

Dennis DuVall duvallddennis at gmail.com
Tue Oct 6 03:32:32 EDT 2015


Details of Earhardy's  radios are available on the TIGHAR site along with a LOT
of other technical information. For an overall technical analysis and description of the radios see:
<.http://tighar.org/Projects/Earhart/Archives/Research/ResearchPapers/ElectraRadios/ElectraRadios.htm <http://tighar.org/Projects/Earhart/Archives/Research/ResearchPapers/ElectraRadios/ElectraRadios.htm> >

For a schematic of the 13C PA see: 
<http://tighar.org/Projects/Earhart/Archives/Research/ResearchPapers/ElectraRadios/FigureB.html <http://tighar.org/Projects/Earhart/Archives/Research/ResearchPapers/ElectraRadios/FigureB.html>>

Earhart’s radio was apparently modified, see:
<http://tighar.org/Projects/Earhart/Archives/Research/ResearchPapers/ElectraRadios/Schematic2.html <http://tighar.org/Projects/Earhart/Archives/Research/ResearchPapers/ElectraRadios/Schematic2.html>>

Very primitive stuff by today’s standards and better equipment probably available at the time.

Dennis D.  W7QHO
Glendale, CA

************


> On Oct 5, 2015, at 3:28 PM, Hue Miller <kargo_cult at msn.com> wrote:
> 
> Boys and girls, i am fishing for someone maybe interested in taking up a project that i am going
> to abandon. I have a W.E. transmitter of the same type carried on Amelia Earhart's plane on the
> last flight. I have no control boxes. They don't exist; i have only seen some fuzzy photos in old
> Radio News magazines. So that's one thing. The other is, if the tubes are not good, you would
> probably have to cash in some of your savings to try to buy replacements. The RF tubes, if i
> recall, have some grid cap coming out the side as well as top. I do not have the matching W.E.
> receiver, but i have an RCA AVR-7, which is similar in purpose and waverange. I was thinking at
> one time this would be an interesting setup to put on the air, but i'm also thinking it would be
> more sane for me to drop about 90% of my projects.
> One  thing the advanced experimenter might do is load the transmitter up on a wire antenna
> and try to measure the harmonic power output, say on the air freqs of 3105 and 6210 fundamentals,
> to try to get some numbers for the actual radiated harmonic power. This deals with the post-
> disappearance radio signals reportedly picked up.
> The transmitter is kind of big, i think maybe 18 x 15 x 10 ins. and is nothing to look at - just a
> black box with flaking paint.
> The receiver has a remote control box and short tuning cable, IIR ( have not  looked at it for
> a long time. )
> I also have a large poster of a Lockheed 10 coming in for landing on the beach on a small
> island. I was going to offer the poster here free but i think better to bundle it with the above
> equipment. The poster i got for contributing certain money to TIGHAR's Nikumaroro seach
> expedition. I paid about $400 for the transmitter and i understand it would probably not be
> possible to recover that. At the moment the equipment is in storage in another town and so
> not immediately accessible. I am just kind of thinking out loud on what to do about this project and
> maybe fishing for someone interested to take it up. Trade or sell.
> -Hue Miller
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