Mail Archive Search: <+subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+IM\s+distortion\s+and\s+such\s*$/>

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+IM\s+distortion\s+and\s+such\s*$/: 106 ]

Total 106 documents matching your query.

21. Re: [Amps] IM distortion and such (score: 1): Author: R L Measures <r@somis.org>; Date: Mon, 26 Jun 2006 11:02:22 -0700; Joe -- Since 3-500Zs do not have an indirectly-heated cathode, the only issue about overdriving them is non-linearity. R L MEASURES, AG6K. 805-386-3734 r@somis.org ___________________________________; /archives//html/Amps/2006-06/msg00461.html (14,463 bytes)
22. Re: [Amps] IM distortion and such (score: 1): Author: R L Measures <r@somis.org>; Date: Mon, 26 Jun 2006 11:37:35 -0700; Did he measure IMD? R L MEASURES, AG6K. 805-386-3734 r@somis.org _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amp; /archives//html/Amps/2006-06/msg00463.html (10,240 bytes)
23. Re: [Amps] IM distortion and such (score: 1): Author: R L Measures <r@somis.org>; Date: Mon, 26 Jun 2006 10:00:55 -0700; Amen, Joe. They were also under pressure from the Administration to launch for political timing reasons. Indeed, Joe. The last amplifier that I built was an 8169 in AB1. I tried to do everything perf; /archives//html/Amps/2006-06/msg00464.html (15,320 bytes)
24. Re: [Amps] IM distortion and such (score: 1): Author: W2RU - Bud Hippisley <W2RU@frontiernet.net>; Date: Mon, 26 Jun 2006 20:30:43 +0000; With respect to Tom's first paragraph above: I still have the SB-220 I built more than a quarter of a century ago. I think I've replaced a grand total of one tube in all that time, despite pounding i; /archives//html/Amps/2006-06/msg00466.html (11,513 bytes)
25. Re: [Amps] IM distortion and such (score: 1): Author: "Keith Dutson" <kdutson@sbcglobal.net>; Date: Mon, 26 Jun 2006 16:40:12 -0500; IMO, comparing current flow through semi-conductors and tubes is not wise. Solid state devices can avalanche while metal in a vacuum has no such characteristic that I am aware of. I think this is why; /archives//html/Amps/2006-06/msg00470.html (12,065 bytes)
26. Re: [Amps] IM distortion and such (score: 1): Author: "Michael Tope" <W4EF@dellroy.com>; Date: Mon, 26 Jun 2006 15:44:38 -0700; Will, Since when do you need a PE license to be an electronic design engineer? Only a handful of the design engineers that I have worked with over the years actually had a PE license. 73, Mike W4EF..; /archives//html/Amps/2006-06/msg00471.html (11,836 bytes)
27. Re: [Amps] IM distortion and such (score: 1): Author: Bill Coleman <aa4lr@arrl.net>; Date: Mon, 26 Jun 2006 20:53:45 -0400; I don't know why. With just a little bit of searching, I found a 3-500Z spec sheet that clearly shows constant current curves going as high as 2.2 amps! (Here:<http://www.mif.pg.gda.pl/homepages/fran; /archives//html/Amps/2006-06/msg00474.html (8,190 bytes)
28. Re: [Amps] IM distortion and such (score: 1): Author: "Mike Sawyer" <w3slk@uplink.net>; Date: Mon, 26 Jun 2006 21:15:04 -0400; Bill said: .....I don't know why. With just a little bit of searching, I found a 3-500Z spec sheet that clearly shows constant current curves going as high as 2.2 amps! (Here:<http://www.mif.pg.gda.p; /archives//html/Amps/2006-06/msg00475.html (10,524 bytes)
29. Re: [Amps] IM distortion and such (score: 1): Author: Bill Coleman <aa4lr@arrl.net>; Date: Mon, 26 Jun 2006 21:17:21 -0400; In mechanical engineering, they usually refer to this as a "design rule". For example, light aircraft are typically designed to withstand 3.8 positive Gs (in the Normal category). But, you wouldn't b; /archives//html/Amps/2006-06/msg00476.html (10,255 bytes)
30. Re: [Amps] IM distortion and such (score: 1): Author: "Will Matney" <craxd1@verizon.net>; Date: Mon, 26 Jun 2006 20:46:37 -0400; Mike, I was at the Kentucky licensure website several years back, and you could download the whole state law on this. I did and read it through. It said that if you designed any equipment for the pub; /archives//html/Amps/2006-06/msg00477.html (15,660 bytes)
31. Re: [Amps] IM distortion and such (score: 1): Author: "Will Matney" <craxd1@verizon.net>; Date: Mon, 26 Jun 2006 21:28:58 -0400; Bill, I totally agree with everything you said. I'm not trying to down the AL-80, it's just saying that in the manual can set a company up for liability. That was the point I was trying to get across; /archives//html/Amps/2006-06/msg00479.html (11,690 bytes)
32. Re: [Amps] IM distortion and such (score: 1): Author: Bill Coleman <aa4lr@arrl.net>; Date: Mon, 26 Jun 2006 21:39:21 -0400; The single quickest way to bankruptcy for a manufacturing organization is excess capacity. There are many ways to get there, not all are in the hands of the engineers. There are a number of greatly e; /archives//html/Amps/2006-06/msg00480.html (9,117 bytes)
33. Re: [Amps] IM distortion and such (score: 1): Author: Bill Coleman <aa4lr@arrl.net>; Date: Mon, 26 Jun 2006 21:45:54 -0400; So, Mike, explain to me how the manufacturer can get constant current curves all the way up to 2.2 A if the maximum plate current is .4 A. Bill Coleman, AA4LR, PP-ASEL Mail: aa4lr@arrl.net Quote: "No; /archives//html/Amps/2006-06/msg00482.html (9,585 bytes)
34. Re: [Amps] IM distortion and such (score: 1): Author: Bill Coleman <aa4lr@arrl.net>; Date: Mon, 26 Jun 2006 21:52:02 -0400; In this litigious society, you can't do anything to positively avoid lawsuits except to close up shop. I don't know if Ameritron has a letter from Eimac or not. That's really immaterial. Bill Coleman; /archives//html/Amps/2006-06/msg00483.html (8,837 bytes)
35. Re: [Amps] IM distortion and such (score: 1): Author: "Michael Tope" <W4EF@dellroy.com>; Date: Mon, 26 Jun 2006 20:02:43 -0700; Pulsed measurements. BTW, if you do the math -> 4000 volts x 400mA = 1600 watts input power. At 70% efficiency, that's ~500 watts plate dissipation, so there's some consistency between the numbers. I; /archives//html/Amps/2006-06/msg00487.html (9,836 bytes)
36. Re: [Amps] IM distortion and such (score: 1): Author: "Will Matney" <craxd1@verizon.net>; Date: Mon, 26 Jun 2006 21:57:08 -0400; Bill, They can be used on up in current, say for pulse circuits and RF heating. The 400 mA is the maximum plate current at single tone for minimum distortion. That's for 600 watts PEP useful power ea; /archives//html/Amps/2006-06/msg00490.html (11,277 bytes)
37. Re: [Amps] IM distortion and such (score: 1): Author: "Will Matney" <craxd1@verizon.net>; Date: Mon, 26 Jun 2006 22:14:28 -0400; Bill, I forgot about you being in the Bluegrass State. You would know well the laws there, and they are the same here in Ohio and in West Virginia. WV was the last state around close that allowed tak; /archives//html/Amps/2006-06/msg00491.html (13,156 bytes)
38. Re: [Amps] IM distortion and such (score: 1): Author: R L Measures <r@somis.org>; Date: Mon, 26 Jun 2006 19:47:27 -0700; Indeed. In pulse service they will do more than that. No one claimed that it wouldn't do more, the rub is that it isn't very linear above 420mA avg or 1,25a-pk. From what I've seen, a 3-500 can do c.; /archives//html/Amps/2006-06/msg00493.html (10,634 bytes)
39. Re: [Amps] IM distortion and such (score: 1): Author: R L Measures <r@somis.org>; Date: Mon, 26 Jun 2006 20:01:21 -0700; Sure, the Tucker failed but many of its clever innovations were years ahead of the pack. R L MEASURES, AG6K. 805-386-3734 r@somis.org _______________________________________________ Amps mailing list; /archives//html/Amps/2006-06/msg00494.html (9,510 bytes)
40. Re: [Amps] IM distortion and such (score: 1): Author: R L Measures <r@somis.org>; Date: Mon, 26 Jun 2006 20:05:14 -0700; The 8877 tech data sheets show 50a pulses. Does that mean 50a peaks sre okay for SSB? R L MEASURES, AG6K. 805-386-3734 r@somis.org _______________________________________________ Amps mailing list Am; /archives//html/Amps/2006-06/msg00495.html (10,825 bytes)

Current List: 21 - 40
Page: [1] [2] [3] [4] [5] [6]