[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@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
Re: [AMRadio] Source of very nice inductor and variometer for ATN
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 [EMAIL PROTECTED] - Original Message - From: John Lyles [EMAIL PROTECTED] To: amradio@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@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body. __ 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@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
RE: [AMRadio] Source of very nice inductor and variometer for ATN
Thanks for saying that, Bill. I was about to cry at the thought of it. Rick 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 [EMAIL PROTECTED] - Original Message - From: John Lyles [EMAIL PROTECTED] To: amradio@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... __ 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@mailman.qth.net To unsubscribe, send an email to [EMAIL PROTECTED] with the word unsubscribe in the message body.
