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Total 12 documents matching your query.

1. [Amps] old commercial amp (score: 1): Author: Paul Decker <kg7hf@comcast.net>; Date: Thu, 16 Jun 2011 23:57:37 +0000 (UTC); Now here's an amp! http://cgi.ebay.com/Johnson-Kilowatt-Desk-Transmitter-/330577398599?pt=LH_DefaultDomain_0&hash=item4cf7f2cb47 _______________________________________________ Amps mailing list Amps; /archives//html/Amps/2011-06/msg00195.html (7,140 bytes)
2. Re: [Amps] old commercial amp (score: 1): Author: "Carl" <km1h@jeremy.mv.com>; Date: Thu, 16 Jun 2011 20:32:21 -0400; All that for 1000W INPUT! It is the ultimate Johnson but far from the ultimate BA. Carl KM1H _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contest; /archives//html/Amps/2011-06/msg00196.html (7,604 bytes)
3. Re: [Amps] old commercial amp (score: 1): Author: "Roger (sub1)" <sub1@rogerhalstead.com>; Date: Thu, 16 Jun 2011 21:31:07 -0400; I always wanted one though...well at least until SSB came along. 73 Roger (K8RI) _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mail; /archives//html/Amps/2011-06/msg00197.html (8,839 bytes)
4. Re: [Amps] old commercial amp (score: 1): Author: Bill Fuqua <wlfuqu00@uky.edu>; Date: Thu, 16 Jun 2011 21:42:09 -0400; A commercial amp. "AM Broadcast" would be 6 feet tall and only one band. Same tube line up as on modulators and pa as in many 1kW AM broadcast transmitters. 73 Bill wa4lav ___________________________; /archives//html/Amps/2011-06/msg00198.html (8,836 bytes)
5. Re: [Amps] old commercial amp (score: 1): Author: "Carl" <km1h@jeremy.mv.com>; Date: Thu, 16 Jun 2011 22:10:44 -0400; There are hundreds of ex BC rigs on 160 and 75 these days as well as 2-30MHz commercial and military gear in 6' racks. The ultimate ham BA to many is the Collins KW-1 or one of its predecessors. Carl; /archives//html/Amps/2011-06/msg00199.html (10,509 bytes)
6. Re: [Amps] old commercial amp (score: 1): Author: Paul Decker <kg7hf@comcast.net>; Date: Fri, 17 Jun 2011 02:32:27 +0000 (UTC); The AN/FRT-31 is likely the ultimate ba, but not for typical house hold use. _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/; /archives//html/Amps/2011-06/msg00200.html (7,487 bytes)
7. Re: [Amps] old commercial amp (score: 1): Author: Glen Zook <gzook@yahoo.com>; Date: Thu, 16 Jun 2011 19:45:37 -0700 (PDT); Nah! A 308-U20 is more like it! :>) Glen, K9STH Website: http://k9sth.com The AN/FRT-31 is likely the ultimate ba, but not for typical house hold use. _______________________________________________; /archives//html/Amps/2011-06/msg00201.html (7,265 bytes)
8. Re: [Amps] old commercial amp (score: 1): Author: n8de@thepoint.net; Date: Thu, 16 Jun 2011 23:29:06 -0400; Under-powered and over-priced. 73 Don N8DE _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps; /archives//html/Amps/2011-06/msg00202.html (7,749 bytes)
9. Re: [Amps] old commercial amp (score: 1): Author: "Fuqua, Bill L" <wlfuqu00@uky.edu>; Date: Fri, 17 Jun 2011 00:51:26 -0400; I remember seeing an article in QST where someone took an old AM transmitter using 833As and put it on 80 meters. What I did not understand is that they did not make any change to the neutralization; /archives//html/Amps/2011-06/msg00203.html (11,339 bytes)
10. Re: [Amps] old commercial amp (score: 1): Author: Ron Youvan <ka4inm@tampabay.rr.com>; Date: Fri, 17 Jun 2011 08:57:47 -0400; It may relate to the fact that once neutralized with 180 out of phase Voltage the capacitance need not vary (for any frequency) as long as the input or output tank remains balanced as is used for pus; /archives//html/Amps/2011-06/msg00207.html (9,200 bytes)
11. Re: [Amps] old commercial amp (score: 1): Author: "Carl" <km1h@jeremy.mv.com>; Date: Fri, 17 Jun 2011 13:57:20 -0400; It was still close enough and the 833A's remained stable. Some FB is better than none. Carl KM1H I remember seeing an article in QST where someone took an old AM transmitter using 833As and put it on; /archives//html/Amps/2011-06/msg00211.html (12,042 bytes)
12. Re: [Amps] old commercial amp (score: 1): Author: "Gary Smith" <wa6fgi@sbcglobal.net>; Date: Fri, 17 Jun 2011 15:16:43 -0700; There is a working one of these at the Virginia City radio museum in Nevada. Look it up on the web, the guy restores old boat anchor adios including ham gear. He has a national rcvr that looks as goo; /archives//html/Amps/2011-06/msg00212.html (8,822 bytes)

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