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Total 10 documents matching your query.

1. [AMPS] Series Tuned Tank? (score: 1): Author: randyd@specent.com (Randall D. DuCharme); Date: Thu, 12 Oct 2000 19:45:13 -0500; Greetings, I'm a new ham eager to build his first amplifier. Done lots with tube audio in the past but RF is definitely a different animal. For my first project I intend to use 813s. They were cheap,; /archives//html/Amps/2000-10/msg00262.html (8,609 bytes)
2. [AMPS] Series Tuned Tank? (score: 1): Author: jeff@wa1hco.mv.com (jeff millar); Date: Fri, 13 Oct 2000 01:10:33 -0400; My guess: Design the plate output circuit to resonate with a bit less than the rated output cap of the plate plus strays. Then put a series capacitor in the plate to tank coil lead to reduce the effe; /archives//html/Amps/2000-10/msg00263.html (11,175 bytes)
3. [AMPS] Series Tuned Tank? (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Fri, 13 Oct 2000 05:27:49 -0400; Hi Jeff, You can make the amp run on a higher frequency....maybe....but the tank circuit is a mess. The tube looks into a series tuned circuit with low impedance, lower than if you didn't have the se; /archives//html/Amps/2000-10/msg00270.html (8,965 bytes)
4. [AMPS] Series Tuned Tank? (score: 1): Author: jeff@wa1hco.mv.com (jeff millar); Date: Sat, 14 Oct 2000 03:44:02 -0400; Tom suggests that reducing capacitance and increasing inductance with the series cap suggested actually increases Q. At great risk to my lap dog status, I decided to model the two circuits and compar; /archives//html/Amps/2000-10/msg00293.html (9,533 bytes)
5. [AMPS] Series Tuned Tank? (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Sat, 14 Oct 2000 05:54:59 -0400; If you look in VHF publications, you'll see the opposite is claimed. The claim is made that Q decreases, but the exact opposite happens. Look at the impedance at the L that would normally be the inp; /archives//html/Amps/2000-10/msg00295.html (9,424 bytes)
6. [AMPS] Series Tuned Tank? (score: 1): Author: Peter_Chadwick@mitel.com (Peter Chadwick); Date: Mon, 16 Oct 2000 09:35:14 +0100; Correct, if anyhting, by having a larger coil, it increases tank circuit Q. It is a technique that allows the use of a practical sized capacitor and coil, though. I've never seen it used on anything; /archives//html/Amps/2000-10/msg00359.html (7,920 bytes)
7. [AMPS] Series Tuned Tank? (score: 1): Author: jeff@wa1hco.mv.com (jeff millar); Date: Tue, 17 Oct 2000 01:20:01 -0400; I was able to confirm that a series cap increases Q and several people helped me to understand intuitively what it works that way. When I model a series L, the results also show an increase in Q, by; /archives//html/Amps/2000-10/msg00416.html (9,242 bytes)
8. [AMPS] Series Tuned Tank? (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Mon, 16 Oct 2000 22:11:30 -0400; With the series L, make it an L network with zero j output. The tube Cout becomes the L networks shunt component, while the L "feeds out" to the outside world. Now take whatever impedance you wind u; /archives//html/Amps/2000-10/msg00418.html (8,101 bytes)
9. [AMPS] Series Tuned Tank? (score: 1): Author: jeff@wa1hco.mv.com (jeff millar); Date: Fri, 20 Oct 2000 03:26:34 -0400; The results of modeling with a serial inductance from plate to PiNet are in...sorta. I still couldn't find a combination that lowers the Q. Here's a table of results. The following table is for a sin; /archives//html/Amps/2000-10/msg00480.html (9,792 bytes)
10. [AMPS] Series Tuned Tank? (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Fri, 20 Oct 2000 01:46:59 -0400; I think I see now what you are doing. You are counting the output C of the tube as the exclusive component input for the pi input, then you have solved for an output of 50 ohms. When I'm speaking of; /archives//html/Amps/2000-10/msg00483.html (9,255 bytes)

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