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1. [AMPS] parasitic fantasia (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Mon, 7 Jun 1999 09:15:37 -0400; Hi Peter, I accidentally deleted your message, so can't repost it. Typical amateur amps are actually rather modestly shielded at VHF. They rely heavily on low impedance on the anode and cathode of th; /archives//html/Amps/1999-06/msg00191.html (9,268 bytes)
2. [AMPS] parasitic fantasia (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Mon, 7 Jun 99 09:15:29 -0500; I thought that most of the TVI reduction came from the low pass action of the tank circuit. Or are we saying the same thing? Tom, help me understand something here. One of the things that can cause; /archives//html/Amps/1999-06/msg00195.html (8,725 bytes)
3. [AMPS] parasitic fantasia (score: 1): Author: Peter_Chadwick@mitel.com (Peter Chadwick); Date: Mon, 7 Jun 1999 15:13:57 +0100; path >from the anode to ground. How? If it has a low impedance, you can't develop any volts between plate and ground, so the amount of volts available to be fed back is less. 73 Peter G3RZP -- FAQ on; /archives//html/Amps/1999-06/msg00196.html (7,917 bytes)
4. [AMPS] parasitic fantasia (score: 1): Author: measures@vc.net (Rich Measures); Date: Mon, 7 Jun 1999 09:22:50 -0700; ? amen, Peter Rich... R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures -- FAQ on WWW: http://www.contesting.com/ampfaq.html Submissions: amps@contesting.com Administrative requests: amps-R; /archives//html/Amps/1999-06/msg00206.html (7,973 bytes)
5. [AMPS] parasitic fantasia (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Mon, 7 Jun 1999 12:30:40 -0400; Hi Jon, Not entirely. Layout and component quality (meaning the self-impedance of the components) is more critical than anything else in suppressing high-order harmonics. Even moving a lead to a diff; /archives//html/Amps/1999-06/msg00208.html (11,655 bytes)
6. [AMPS] parasitic fantasia (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Mon, 7 Jun 99 16:16:47 -0500; I wanted to reply to this but I wanted time to think it through first. The gird in a tube is essentially analogous to the gate in a FET and the Anode is analgous to the Drain and Cathode the source.; /archives//html/Amps/1999-06/msg00221.html (9,439 bytes)
7. [AMPS] parasitic fantasia (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Mon, 7 Jun 1999 19:37:26 -0400; Hi Jon, Thanks for making me feel old. ;-) My age is showing. I always considered FET operation in terms of a tube, not the other way!! That's right, but you also have to consider Q and the shunt imp; /archives//html/Amps/1999-06/msg00233.html (11,315 bytes)
8. [AMPS] parasitic fantasia (score: 1): Author: jono@enteract.com (Jon Ogden); Date: Mon, 7 Jun 1999 19:02:13 -0500; Thanks Tom, for the well thought out note. Stability IS a very complex issue and is not easily solved by any one method. I guess in my case for my amp the added coil in the anode lead that I used pr; /archives//html/Amps/1999-06/msg00234.html (9,365 bytes)
9. [AMPS] parasitic fantasia (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Mon, 7 Jun 1999 21:35:20 -0400; Hi Jon, Actually the poorer the tube design, and poorer the layout, the more valuable nichrome becomes. That's because the addition of loss resistance in the inductor, the primary low frequency path,; /archives//html/Amps/1999-06/msg00238.html (12,539 bytes)
10. [AMPS] parasitic fantasia (score: 1): Author: mgilmer@gnlp.com (Gilmer, Mike); Date: Tue, 8 Jun 1999 15:46:18 -0400; Careful Jon. Men of Science didn't really believe the Earth was flat. Mike N2MG On Monday, June 07, 1999 8:02 PM, Jon Ogden [SMTP:jono@enteract.com] wrote: But people once thought the earth -- FAQ on; /archives//html/Amps/1999-06/msg00275.html (7,849 bytes)
11. [AMPS] parasitic fantasia (score: 1): Author: measures@vc.net (Rich Measures); Date: Sun, 20 Jun 1999 10:44:50 -0700; The long-delayed reflection: ? What is "the frequency of the de-Q'ing"? Wes' measurements showed that resistance-wire lowered supp. Q from 10MHz to 200Mhz. ? Surely. Perhaps 1 to 2% loss at 29MHz, wh; /archives//html/Amps/1999-06/msg00537.html (14,164 bytes)

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