Mail Archive Search: <+subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+Tuned\s+input\s+design\s+\/\s+measurement\s+questions\s*$/>

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+Tuned\s+input\s+design\s+\/\s+measurement\s+questions\s*$/: 11 ]

Total 11 documents matching your query.

1. [Amps] Tuned input design / measurement questions (score: 1): Author: Chris Wilson <chris@chriswilson.tv>; Date: Tue, 16 Apr 2013 16:37:31 +0100; 16/04/2013 16:34 May I ask a question re my construction of a tuned input circuit? I am converting a Henry 2000D RF Generator on 27.12 MHz to (initially) a single band (20 meter) linear amp. I am try; /archives//html/Amps/2013-04/msg00121.html (10,107 bytes)
2. Re: [Amps] Tuned input design / measurement questions (score: 1): Author: Vic K2VCO <k2vco.vic@gmail.com>; Date: Tue, 16 Apr 2013 08:59:05 -0700; On 4/16/2013 8:37 AM, Chris Wilson wrote: I am unsure if the antenna matching "stuff" in my Kenwood TS-590 exciter precludes the need for this, though? I am trying to match 50 ohms to near 50 ohms,wh; /archives//html/Amps/2013-04/msg00123.html (9,269 bytes)
3. Re: [Amps] Tuned input design / measurement questions (score: 1): Author: donroden@hiwaay.net; Date: Tue, 16 Apr 2013 11:20:51 -0500; Quoting Vic K2VCO <k2vco.vic@gmail.com>: If you don't have a tuned input circuit in the amplifier, then the return path for the RF cathode current is through the coax and the transceiver output tank.; /archives//html/Amps/2013-04/msg00125.html (7,395 bytes)
4. Re: [Amps] Tuned input design / measurement questions (score: 1): Author: "Peter Voelpel" <dj7ww@t-online.de>; Date: Tue, 16 Apr 2013 19:15:05 +0200; The RF cathode current is anode RF current + grid RF current. The return path imho for it is through the input impedance and chassis ground, not through the transceiver. 73 Peter If you don't have a; /archives//html/Amps/2013-04/msg00127.html (7,497 bytes)
5. Re: [Amps] Tuned input design / measurement questions (score: 1): Author: Drax Felton <draxfelton@gmail.com>; Date: Tue, 16 Apr 2013 14:59:02 -0400; This is similar to the misconception that SWR other than 1:1 causes finals to heat? Sent from my iPhone _______________________________________________ Amps mailing list Amps@contesting.com http://li; /archives//html/Amps/2013-04/msg00128.html (8,414 bytes)
6. Re: [Amps] Tuned input design / measurement questions (score: 1): Author: Vic K2VCO <k2vco.vic@gmail.com>; Date: Tue, 16 Apr 2013 14:02:34 -0700; RF current flows from the cathode to the anode, then to ground through the tank circuit (it is blocked from the power supply). Then how does it get back to the cathode? If there is no tuned input, th; /archives//html/Amps/2013-04/msg00129.html (8,645 bytes)
7. Re: [Amps] Tuned input design / measurement questions (score: 1): Author: Chris Wilson <chris@chriswilson.tv>; Date: Tue, 16 Apr 2013 23:41:27 +0100; 16/04/2013 23:32 Thanks for the replies so far. I have taken a backward step and decided to use the AIM 4170 to scan the stock factory 27.12 MHz Pi input circuit. As I did not get the exciter with th; /archives//html/Amps/2013-04/msg00130.html (8,916 bytes)
8. Re: [Amps] Tuned input design / measurement questions (score: 1): Author: "Gary Schafer" <garyschafer@comcast.net>; Date: Tue, 16 Apr 2013 21:26:26 -0400; Hi Chris, Placing the 50 ohm resistor across the output of the input network should get you close provided that you have the tube in the socket as the pi network output capacitance uses in part the g; /archives//html/Amps/2013-04/msg00132.html (12,304 bytes)
9. Re: [Amps] Tuned input design / measurement questions (score: 1): Author: "Carl" <km1h@jeremy.mv.com>; Date: Tue, 16 Apr 2013 21:31:36 -0400; 16/04/2013 16:34 May I ask a question re my construction of a tuned input circuit? I am converting a Henry 2000D RF Generator on 27.12 MHz to (initially) a single band (20 meter) linear amp. I am tr; /archives//html/Amps/2013-04/msg00133.html (9,669 bytes)
10. [Amps] Tuned input design / measurement questions (score: 1): Author: "Jim Thomson" <jim.thom@telus.net>; Date: Tue, 16 Apr 2013 20:43:26 -0700; The RF cathode current is anode RF current + grid RF current. The return path imho for it is through the input impedance and chassis ground, not through the transceiver. 73 Peter more sense and has b; /archives//html/Amps/2013-04/msg00139.html (9,502 bytes)
11. Re: [Amps] Tuned input design / measurement questions (score: 1): Author: "Peter Voelpel" <dj7ww@t-online.de>; Date: Wed, 17 Apr 2013 12:53:42 +0200; Jim, that is the path of the RF driving power. 73 Peter The C2 cap in any PI tuned input is the return for the rf cathode current. Without the tuned input, the only other path is via the braid of coa; /archives//html/Amps/2013-04/msg00153.html (8,540 bytes)

Current List: 1 - 11
Page: [1]