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Total 12 documents matching your query.

1. [Amps] Capacitors vs No Capacitors (score: 1): Author: donroden@hiwaay.net; Date: Wed, 18 Apr 2012 18:15:55 -0500; Thinking out loud..... A 15KV @ 10 mf in a Broadcast FM transmitter many years ago shorted........... Nothing to lose, so I disconnected the capacitor ( no choke ) and made rated power with just the; /archives//html/Amps/2012-04/msg00181.html (7,990 bytes)
2. Re: [Amps] Capacitors vs No Capacitors (score: 1): Author: Gudguyham@aol.com; Date: Wed, 18 Apr 2012 19:26:07 -0400 (EDT); Would there be a "optimum-minimum" capacitance ? When it comes to a total capacitance that is optimum in a power supply filter the law of diminishing returns comes into play. Just like with radials o; /archives//html/Amps/2012-04/msg00182.html (7,265 bytes)
3. Re: [Amps] Capacitors vs No Capacitors (score: 1): Author: Colin Lamb <k7fm@teleport.com>; Date: Wed, 18 Apr 2012 16:29:02 -0700 (GMT-07:00); "But I wonder what would be the results with no capacitor in CW or SSB operation.... The voltage wouldn't be as high.... no capacitor to charge." OK, I did just that. Decades ago, I was using a Johns; /archives//html/Amps/2012-04/msg00183.html (7,476 bytes)
4. Re: [Amps] Capacitors vs No Capacitors (score: 1): Author: "Carl" <km1h@jeremy.mv.com>; Date: Wed, 18 Apr 2012 19:34:01 -0400; Wasnt "Rotten Radio" signals part of the 1927 rules changes (-; Carl KM1H _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/lis; /archives//html/Amps/2012-04/msg00184.html (9,021 bytes)
5. Re: [Amps] Capacitors vs No Capacitors (score: 1): Author: Dan Mills <dmills@exponent.myzen.co.uk>; Date: Thu, 19 Apr 2012 22:47:55 +0100; If the rig was big enough to operate on three phase power then there would only have been about 30% ripple even without a cap in there, so I am not at all surprised that an FM TX would work without a; /archives//html/Amps/2012-04/msg00187.html (7,850 bytes)
6. Re: [Amps] Capacitors vs No Capacitors (score: 1): Author: Larry Benko <xxw0qe@comcast.net>; Date: Thu, 19 Apr 2012 17:36:20 -0600; Dan, I don't quite calculate the same number. If the source is 3 phase power and halfwave rectification the ripple would be 50%. This is most likely _not_ the case. In the more likely case of full wa; /archives//html/Amps/2012-04/msg00191.html (9,875 bytes)
7. Re: [Amps] Capacitors vs No Capacitors (score: 1): Author: Dan Mills <dmills@exponent.myzen.co.uk>; Date: Fri, 20 Apr 2012 01:03:29 +0100; Ick! Yea, brain fart on my part, you are of course correct, but in either case a FM set running from a three phase 6 pulse rectifier with no bulk supply filtering is clearly entirely possible. Regard; /archives//html/Amps/2012-04/msg00194.html (9,832 bytes)
8. [Amps] Capacitors vs No Capacitors (score: 1): Author: "Jim Thomson" <jim.thom@telus.net>; Date: Mon, 23 Apr 2012 07:43:02 -0700; If the rig was big enough to operate on three phase power then there would only have been about 30% ripple even without a cap in there, so I am not at all surprised that an FM TX would work without a; /archives//html/Amps/2012-04/msg00215.html (9,921 bytes)
9. Re: [Amps] Capacitors vs No Capacitors (score: 1): Author: "Paul Christensen" <w9ac@arrl.net>; Date: Mon, 23 Apr 2012 11:02:38 -0400; Or, old ARRL Handbooks and Antenna Books from the 1930-'50s. Nor early Frank Jones Handbooks. There is important, detailed material covered in those early editions that is not adequately covered tod; /archives//html/Amps/2012-04/msg00216.html (7,452 bytes)
10. Re: [Amps] Capacitors vs No Capacitors (score: 1): Author: Dan Mills <dmills@exponent.myzen.co.uk>; Date: Mon, 23 Apr 2012 20:57:19 +0100; The only gotcha is that that the 6 phase bridge needs two transformers, both with the same secondary voltage, but one setup for three phase star and one for three phase delta primaries (The phase shi; /archives//html/Amps/2012-04/msg00223.html (9,348 bytes)
11. Re: [Amps] Capacitors vs No Capacitors (score: 1): Author: "Peter Voelpel" <df3kv@t-online.de>; Date: Tue, 24 Apr 2012 02:47:38 +0200; In Germany the limit is 750W measured at the tx output. 73 Peter, DJ7WW But remember for most of Europe, full legal limit QRO is rather less then 1500W, (400W limit here in the UK, measured at the fe; /archives//html/Amps/2012-04/msg00224.html (7,642 bytes)
12. Re: [Amps] Capacitors vs No Capacitors (score: 1): Author: "Dr. David Kirkby" <david.kirkby@onetel.net>; Date: Tue, 24 Apr 2012 06:32:21 +0100; Does that mean German amplifiers don't have RF connectors on the rear, but instead a cable, terminated in an RF connector, with that cable happening to be the length you need for your antenna run? Da; /archives//html/Amps/2012-04/msg00225.html (7,813 bytes)

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