[Boatanchors] [Milsurplus] Pi- Matching Network: When?

[Richard Knoppow]

----- Original Message ----- 
From: "Mike Hanz" <aaf-radio-1 at aafradio.org>
To: "milsurplus List" <milsurplus at mailman.qth.net>; "Old 
Tube Radios" <boatanchors at theporch.com>; "Boatanchors-qth 
List" <boatanchors at mailman.qth.net>
Sent: Thursday, February 09, 2012 6:59 AM
Subject: Re: [Boatanchors] [Milsurplus] Pi- Matching 
Network: When?


On Feb 7, 2012, at 5:49 PM, David Stinson wrote:
>> Anyone have any idea when the Pi output matching
>> network appeared?

Looks like May 1931, Dave.  A quick google search brought 
out this
article on the Windom antenna by John Nagle in the May 1978 
issue of Ham
Radio Magazine:

"William L. Everitt, as faculty advisor to the students who 
worked on
the antenna, contributed much to its development.

     Thank you so much for writing this. I have Everitt's 
book, at one time it was a standard text in electronics. I 
had not known about his contributions to the Windom antenna 
or development of the pi network. From a long interest in 
the history of technology I know how often important 
contributions are ignored or mis-attributed.


--
Richard Knoppow
Los Angeles
WB6KBL
dickburk at ix.netcom.com