- 1. [Amps] AM On a linear (score: 1)
- Author: "Edwin Karl" <edk0kl@centurytel.net>
- Date: Wed, 8 Nov 2006 19:31:58 -0600
- We are overlloking the feed through RF from the grounded grid configuration. A portion of the driving RF will always appear in the output, thus you can never "pinch off" the carrier and get 100% modu
- /archives//html/Amps/2006-11/msg00133.html (6,471 bytes)
- 2. Re: [Amps] AM On a linear (score: 1)
- Author: "Bill L. Fuqua" <wlfuqu00@uky.edu>
- Date: Wed, 08 Nov 2006 21:16:47 -0500
- All of you are overlooking the fact that during the negative swing of the modulator when the plate voltage is near zero just about all the power will actually go to the grid. The same reason why you
- /archives//html/Amps/2006-11/msg00134.html (7,749 bytes)
- 3. Re: [Amps] AM On a linear (score: 1)
- Author: "Gary Schafer" <garyschafer@comcast.net>
- Date: Wed, 8 Nov 2006 20:50:00 -0600
- But if the amp is driven into class C as it would need to be in order to plate modulate it wouldn't the same thing exist most of the time that the tube was in cutoff? 73 Gary K4FMX __________________
- /archives//html/Amps/2006-11/msg00135.html (8,559 bytes)
- 4. Re: [Amps] AM On a linear (score: 1)
- Author: "Bill L. Fuqua" <wlfuqu00@uky.edu>
- Date: Wed, 08 Nov 2006 21:58:02 -0500
- I think you are referring to grid driven class C. But there the power supplied the grid is limited by the driver and none in going to the output. When grounded grid and normal B+ is applied most of t
- /archives//html/Amps/2006-11/msg00136.html (9,251 bytes)
- 5. Re: [Amps] AM On a linear (score: 1)
- Author: "Tom W8JI" <w8ji@w8ji.com>
- Date: Wed, 8 Nov 2006 23:50:15 -0500
- and Frying the grid isn't the issue because heat is a time problem. The heavy grid conduction peaks are far too short unless you are using .05 CPS modulation or something. Even "pinching off" the ca
- /archives//html/Amps/2006-11/msg00138.html (9,657 bytes)
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