[ARC5] Pre-ARC-5 rigs.

[D C _Mac_ Macdonald]

The simultaneous screen grid modulation of both the driver and power amplifier is a neat trick!  I wonder if 100% modulation was obtained. 

* * * * * * * * * * * 
* 73 - Mac, K2GKK/5 * 
* (Since 30 Nov 53) * 
* k2gkk hotmail com * 
* Oklahoma City, OK * 
* USAF & FAA (Ret.) * 
* * * * * * * * * * * 
 

 
> Date: Mon, 4 Aug 2014 07:01:51 -0400
> From: aaf-radio-1 at aafradio.org
> To: arc5 at mailman.qth.net
> CC: neilb0627 at gmail.com
> Subject: Re: [ARC5] Pre-ARC-5 rigs.
> 
> On 8/3/2014 11:14 PM, AKLDGUY . wrote:
> > I'm not aware, but am open to enlightenment, that W.E. produced civilian
> > avionics equipment, hence the suggestion that she was permitted to use
> > military equipment.
> 
> W.E. produced a pile of Bell Labs designed commercial aircraft equipment 
> during the 1930s, including the 50 watt WE-13C transmitter that Amelia 
> was alleged to have carried on the flight.  From Myron Eddy's 1939 book 
> _Aeronautic Radio_:  "Western Electric radio equipment of one kind or 
> another is in use on most of the major airlines and many of their 
> connecting lines where modifications have in some cases been 
> successfully incorporated."  The WE-13C is described in Terman's 
> textbook dated 1937, including photographs. It reminds me of a portable 
> electric bathroom heater... :-)   I got so many questions about it from 
> the Tighar folks that I finally just put all the info into a pdf and 
> posted it at 
> http://aafradio.org/docs/Western_Electric_WE_13C_Transmitter.pdf
> 
> 73,
> Mike