Lee,

What a wonderful story. My mind flashed back to the 1940's and building a
Xtal radio that I listened to every evening and ended up getting my license
at age 10.  Fun for the rest of my life.

Phil 


Philip LaMarche 
LaMarche Enterprises, Inc.
www.instantgourmetspices.com
800-395-7795 pin 02 
727-944-3226 
FAX 727-937-8834 
NASFT 30210 
W9DVM 
www.w9dvm.com  


-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of LEE BAHR
Sent: Thursday, October 30, 2008 1:02 PM
To: [EMAIL PROTECTED]; Discussion of AM Radio in the Amateur Service;
[EMAIL PROTECTED]; [EMAIL PROTECTED]
Subject: Re: [AMRadio] RE: 160m AA5 receiver to AM Xmtr project

When I was in the 6th grade, I used to take my mother's AA5 radio part
constantly and then put it together again.  (It used octal tubes).  I read
in an article about a "new" ferrite magnetic antenna".  I ordered one from
Burstein-Applebee in Kansas City.  It was a small coil with an adjustable
slug for resonance.  I hooked it up to my AA5 radio and it worked great. 
better then the loop on the broadcast band.  Then I discovered if I pulled
the slug out of the coil, the coil was now tuned to the 75 meter ham band. 
Apparently the second harmonic of the AA5 oscillator was now mixing with the
75 meter phone signals and producing a 455 khz signal.  It worked great!  75
meter AM stations came in loud and clear.  When I wanted to give the radio
back to my mother, I simply peaked the antenna "loopstick" antenna back on
the broadcast band.

Lee
w0vt 

______________________________________________________________
Our Main Website: http://www.amfone.net
AMRadio mailing list
Searchable Archives: http://www.mail-archive.com/[email protected]/
List Rules (must read!): http://w5ami.net/amradiofaq.html List Home:
http://mailman.qth.net/mailman/listinfo/amradio
Help: http://mailman.qth.net/mmfaq.html
Post: mailto:[email protected]
To unsubscribe, send an email to [EMAIL PROTECTED] with the
word unsubscribe in the message body.

______________________________________________________________
Our Main Website: http://www.amfone.net
AMRadio mailing list
Searchable Archives: http://www.mail-archive.com/[email protected]/
List Rules (must read!): http://w5ami.net/amradiofaq.html
List Home: http://mailman.qth.net/mailman/listinfo/amradio
Help: http://mailman.qth.net/mmfaq.html
Post: mailto:[email protected]
To unsubscribe, send an email to [EMAIL PROTECTED] with
the word unsubscribe in the message body.

Reply via email to