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Total 70 documents matching your query.

61. Re: [Amps] Tuned Input (score: 1): Author: "Bill L. Fuqua" <wlfuqu00@uky.edu>; Date: Sun, 22 Jan 2006 16:08:33 -0500; Don't forge coax is has both inductance and capacitance. In fact the characteristic impedance is the squareroot of L/C. L and C are inductance per a unit of length. 73 Bill wa4lav True, K. A.,. howev; /archives//html/Amps/2006-01/msg00508.html (19,873 bytes)
62. Re: [Amps] Tuned Input (score: 1): Author: w6ah@comcast.net; Date: Sun, 22 Jan 2006 21:38:32 +0000; Allow me to provide clarification. I wrote: "A work around that he found was to remove the output cap on the input network bandswitch and attach it directly to the tube cathode." That should read: A; /archives//html/Amps/2006-01/msg00509.html (22,100 bytes)
63. Re: [Amps] Tuned Input (score: 1): Author: Tony King - W4ZT <amps080605@w4zt.com>; Date: Sun, 22 Jan 2006 19:00:38 -0500; yes. 73, Tony W4ZT _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps; /archives//html/Amps/2006-01/msg00512.html (6,892 bytes)
64. Re: [Amps] Tuned Input (score: 1): Author: Peter Chadwick <g3rzp@g3rzp.wanadoo.co.uk>; Date: Mon, 23 Jan 2006 10:54:02 +0100 (CET); 73 Peter SM/G3RZP This week - W6 next week!) _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps; /archives//html/Amps/2006-01/msg00533.html (7,969 bytes)
65. Re: [Amps] Tuned Input (score: 1): Author: "Ian White, GM3SEK" <gm3sek@ifwtech.co.uk>; Date: Mon, 23 Jan 2006 11:37:41 +0000; Yes, they did, but that recommendation didn't rule out the use of a pi-tank. In the first edition of 'SSB Principles and Circuits', the Collins authors show a driver with an output pi-tank, the magic; /archives//html/Amps/2006-01/msg00534.html (8,754 bytes)
66. Re: [Amps] Tuned Input (score: 1): Author: Peter Chadwick <g3rzp@g3rzp.wanadoo.co.uk>; Date: Mon, 23 Jan 2006 12:51:55 +0100 (CET); G3SEK said: <the Collins authors show a driver with an output pi-tank, the magic length of line and a pi-tank input on the amplifier.> I believe that there was a 'magic length' that covered all the h; /archives//html/Amps/2006-01/msg00535.html (9,614 bytes)
67. Re: [Amps] Tuned Input (score: 1): Author: "Gary Schafer" <garyschafer@comcast.net>; Date: Mon, 23 Jan 2006 14:41:57 -0500; Can you explain why we care that harmonics are shown a low impedance in the cathode circuit? How does this effect efficiency? I read that Orr recommended around 13 pf capacitance per meter of frequen; /archives//html/Amps/2006-01/msg00550.html (21,152 bytes)
68. [Amps] Tuned input (score: 1): Author: <sm0aom@telia.com>; Date: Tue, 24 Jan 2006 09:16:54 +0100 (MET); The reason for short-circuiting the harmonic currents in the cathode circuits is that they would cause voltage drops over the cathode circuit if not bypassed. As the cathode and plate circuits effect; /archives//html/Amps/2006-01/msg00576.html (8,527 bytes)
69. Re: [Amps] Tuned input (score: 1): Author: "Gary Schafer" <garyschafer@comcast.net>; Date: Tue, 24 Jan 2006 11:23:39 -0500; Thanks Karl-Arne, very informative! Someone mentioned putting a capacitor directly at the cathode as part of the tuned input network to alleviate the inductance problem on 10 meters. It seems that wo; /archives//html/Amps/2006-01/msg00578.html (10,711 bytes)
70. Re: [Amps] Tuned input (score: 1): Author: Karl-Arne Markström <sm0aom@telia.com>; Date: Tue, 24 Jan 2006 18:08:45 +0100; As the tube input impedance in GG is non-linear, the input circuit also helps in reducing phase distorsion caused by non-linear loading of the driver stage. This is elaborated in some detail in chapt; /archives//html/Amps/2006-01/msg00580.html (11,961 bytes)

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