[AMRadio] Source of very nice inductor and variometer for ATN


Bill Smith hbco2 at sbcglobal.net
Wed Apr 11 19:28:47 EDT 2007


What a horrible thing to do to a RA1000.  :-(

Better to put up a tuned antenna, and restore the RA1000 to service.  :-)

73 de Bill, AB6MT
hbco2 at sbcglobal.net

----- Original Message ----- 
From: "John Lyles" <jtml at losalamos.com>
To: <amradio at mailman.qth.net>
Sent: Wednesday, April 11, 2007 4:32 PM
Subject: [AMRadio] Source of very nice inductor and variometer for ATN


> A classic balanced line antenna tuning network can be built from the
output components of a Raytheon RA1000 1 kW transmitter. It was one of the
few that used push pull 833As in the RF, and had a symmetric tank with a
huge inductor having a small motorized variometer (link coil) in the center
for the antenna connection, and a split variable capacitor. The inductor was
for AM band, so it has enough L to work down to 160 as well. Keep an eye
open for RA1000s getting dumped, not too many left.
> 73
> John
> K5PRO
> ______________________________________________________________
> AMRadio mailing list
> List Rules (must read!): http://w5ami.net/amradiofaq.html
> List Home: http://mailman.qth.net/mailman/listinfo/amradio
> Partner Website: http://www.amfone.net
> Help: http://mailman.qth.net/mmfaq.html
> Post: mailto:AMRadio at mailman.qth.net
> To unsubscribe, send an email to amradio-request at mailman.qth.net with
> the word unsubscribe in the message body.




More information about the AMRadio mailing list

This page last updated 16 Oct 2017.