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Total 4 documents matching your query.

1. Re: [Amps] [rfamplifiers] Unexpected loading capacitance (score: 1): Author: "Steve Flood" <kk7uv@bresnan.net>; Date: Tue, 2 Jun 2009 18:55:29 -0600; Looking further into my lower-than-expected power output on my 3x813 amp.... 1. Checked all tubes in my 813 supply one at a time. Only 1 out of 12 had slightly lower plate current than the rest. I se; /archives//html/Amps/2009-06/msg00003.html (8,426 bytes)
2. Re: [Amps] [rfamplifiers] Unexpected loading capacitance (score: 1): Author: TexasRF@aol.com; Date: Tue, 2 Jun 2009 21:48:22 EDT; Sounds like you might need more drive power. That would increase the plate current swing which will lower the plate load resistance. This would require less plate loading C for maximum power output.; /archives//html/Amps/2009-06/msg00004.html (9,470 bytes)
3. Re: [Amps] [rfamplifiers] Unexpected loading capacitance (score: 1): Author: "Carl" <km1h@jeremy.mv.com>; Date: Tue, 2 Jun 2009 22:09:08 -0300; I agree with Gerard about needing more drive. Also what are you using for a plate choke? Coupling cap? I assume the safety choke is at least 1.5mh Most amps come up a little short on 160. What about; /archives//html/Amps/2009-06/msg00005.html (10,214 bytes)
4. Re: [Amps] [rfamplifiers] Unexpected loading capacitance (score: 1): Author: donroden@hiwaay.net; Date: Wed, 03 Jun 2009 12:44:00 -0500; The safety choke should be "transparent" on all bands. If tuning changes, suspect the choke. Don WA4NPL _______________________________________________ Amps mailing list Amps@contesting.com http://li; /archives//html/Amps/2009-06/msg00006.html (7,540 bytes)

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