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1. [AMPS] No 24 MHz (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Mon, 1 Jun 98 22:48:23 -0500; IMHO and without knowing more, yes. It's likely. The choke in my now dissambled amp has a resonance around 24.5 to 25 MHz. Be sure to check the resonance with the choke in place in the amp. Just sho; /archives//html/Amps/1998-06/msg00015.html (7,669 bytes)
2. [AMPS] No 24 MHz (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Mon, 1 Jun 98 22:51:54 -0500; Not necessarily, Rich. I had a 10m one that was resonant at 29 MHz. It was fine for a while and finally went *bang*. No fire, just a broken ceramic core and melted wires. 73, Jon KE9NA -- Jon Ogden; /archives//html/Amps/1998-06/msg00016.html (7,377 bytes)
3. [AMPS] No 24 MHz (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Mon, 1 Jun 98 22:57:06 -0500; Well, if run long enough it will smoke. However, if Alek has just been making quick measurements and not running the power for that long, then no, you might not smoke it. When my choke was resonant; /archives//html/Amps/1998-06/msg00017.html (8,709 bytes)
4. [AMPS] Cool Monster Tube (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Mon, 1 Jun 98 23:04:40 -0500; Thought you all would like this. Today I was up at Radio Recyclers in Milwaukee, WI. He's got a nice selection of tubes up there, but 2 of them REALLY caught my eye. He's got 2 25 KW monster glass tu; /archives//html/Amps/1998-06/msg00018.html (7,747 bytes)
5. [AMPS] Cleaning Air Variables (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Tue, 2 Jun 98 16:55:03 -0500; Yesterday I picked up a couple of multi-section air variables that I hope to possibly use (one of them) in my amp which is being rebuilt. The old load C has significant arc marks. Anyhow, one of the; /archives//html/Amps/1998-06/msg00029.html (7,495 bytes)
6. [AMPS] Solid State 1kw amp (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Thu, 4 Jun 98 09:00:43 -0500; <snip> <snip> Sounds like we have a battle of the commercial powerhouses going on! Amazing how far it's gotten from the original topic! :-) 73, Jon KE9NA -- Jon Ogden jono@webspun.com www.qsl.net/ke; /archives//html/Amps/1998-06/msg00058.html (8,115 bytes)
7. [AMPS] kW solid state amps (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Fri, 5 Jun 98 08:52:54 -0500; For anyone who is interested Norm Dye and Helge Granberg wrote a great book called "Radio Frequency Transistors - Principles and Practical Applications." Published by Butterworth-Heinemann. ISBN 0-7; /archives//html/Amps/1998-06/msg00068.html (7,757 bytes)
8. [AMPS] 4-1000A Configuration (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Fri, 5 Jun 98 09:04:07 -0500; OK all, I've been unable to get a satisfactory answer on this question, so I'll ask the whole reflector: The other day, someone posted a question about wanting a schematic for a grid driven 4-1000A.; /archives//html/Amps/1998-06/msg00069.html (8,035 bytes)
9. [AMPS] Still no 24MHz (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Fri, 5 Jun 98 14:03:31 -0500; Agreed. Tom seems to think that a dip meter is the most unreliable of all instruments. IMHO, I find them quite handy. When looking to see if a choke is resonant at a particular frequency, I am not s; /archives//html/Amps/1998-06/msg00079.html (7,630 bytes)
10. [AMPS] 4-1000A Configuration (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Fri, 5 Jun 98 14:08:33 -0500; Well, since the efficiency of a tube PA ain't real good anyhow, big deal from what I can tell. The fact that drive power is less and that the tuned input is less complex seems to outweigh the effici; /archives//html/Amps/1998-06/msg00080.html (9,370 bytes)
11. [AMPS] Class C? (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Fri, 5 Jun 98 14:23:25 -0500; A few months ago, QST featured a Class E amplifier for CW use. Very efficient, very small. So yes, for CW or any other "constant envelope" modulation, a class C or other high efficiency amp is just; /archives//html/Amps/1998-06/msg00082.html (7,310 bytes)
12. [AMPS] Need Millen HV connectors (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Fri, 5 Jun 98 16:12:40 -0500; If you are looking for HV RF connectors, I have a source. Radiall makes several: M-HT rated at 20 KV DC-2.0 GHz BNC-HT rated at 10 KV DC-2.0 GHz SHV rated at 12 KV DC-2.0 GHz THT-20 rated at 20 KV D; /archives//html/Amps/1998-06/msg00087.html (8,431 bytes)
13. [AMPS] 4-1000A Configuration (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Fri, 5 Jun 98 16:18:18 -0500; Correct. But, there is NOT zero feedback at VHF. That's what I was saying. 73, Jon KE9NA -- Jon Ogden jono@webspun.com www.qsl.net/ke9na "A life lived in fear is a life half lived." -- FAQ on WWW: h; /archives//html/Amps/1998-06/msg00088.html (7,552 bytes)
14. [AMPS] What's a Western Electric CW-701A? (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Fri, 12 Jun 98 13:27:02 -0500; That's certainly a dubious lifetime! Gee, that's a little over 10 days! 73, Jon KE9NA -- Jon Ogden jono@webspun.com www.qsl.net/ke9na "A life lived in fear is a life half lived." -- FAQ on WWW: http; /archives//html/Amps/1998-06/msg00155.html (7,135 bytes)
15. [AMPS] 3-500Z 101 (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Tue, 16 Jun 98 09:09:21 -0500; We will forgive you. :-) It sounds like to me that the amp is being driven into compression too early. Once you've begun to compress the gain significantly, you'll have a nasty signal on the air. Th; /archives//html/Amps/1998-06/msg00171.html (8,832 bytes)
16. [AMPS] Re: (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Wed, 17 Jun 98 08:51:57 -0500; I think the two anode circuit resonances that Rich is trying to explain are: 1.) The resonance created by the parasitic supressor inductor 2.) The resonance created by the parasitic supressor resist; /archives//html/Amps/1998-06/msg00181.html (8,137 bytes)
17. [AMPS] Re: (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Wed, 17 Jun 98 09:28:03 -0500; Boy, oh boy. I thought we'd been through this before: 1.) A resistor has inductance 2.) This inductance is created by the resistive material as well as lead lengths 3.) Therefore it is also an induc; /archives//html/Amps/1998-06/msg00183.html (8,118 bytes)
18. [AMPS] resonances (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Wed, 17 Jun 98 10:03:26 -0500; You're right. And yes, I was talking "practical" resistors here. But yes, I forgot to add in the stray (parasitic :-) ) capacitance. 73, Jon KE9NA -- Jon Ogden jono@webspun.com www.qsl.net/ke9na "A; /archives//html/Amps/1998-06/msg00186.html (6,934 bytes)
19. [AMPS] Re: (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Wed, 17 Jun 98 13:00:35 -0500; How can you agree, Rich, when even you admit there is no such thing as a "non-inductive" resistor? Yes, you are correct here. I think what I hear you saying is that the inductance of the resistor is; /archives//html/Amps/1998-06/msg00191.html (8,372 bytes)
20. [AMPS] Re: (score: 1): Author: jono@webspun.com (Jon Ogden); Date: Wed, 17 Jun 98 23:43:37 -0500; OK, I hate to pick, but ALL real components have Resistance, Capacitance and Inductance. So a metal film resistor with a spiral for the film will have inductance, plus there will capacitance between; /archives//html/Amps/1998-06/msg00195.html (8,348 bytes)

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