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1. [AMPS] High Voltage with no filament supply (score: 1): Author: mgilmer@gnlp.com (Gilmer, Mike); Date: Tue, 7 Mar 2000 12:29:25 -0500; Is it safe (for the tubes, that is) to apply hi-voltage to a tube without filament voltage? If it matters, they are 3CX800s. Mike N2MG -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Submission; /archives//html/Amps/2000-03/msg00391.html (6,743 bytes)
2. SV: SV: [AMPS] Re: SB220 problem (score: 1): Author: mgilmer@gnlp.com (Gilmer, Mike); Date: Thu, 11 Nov 1999 08:40:07 -0500; On Thursday, November 11, 1999 12:26 AM, measures [SMTP:measures@vcnet.com] wrote: the Rich, he meant that the bandswitch's knob should be DIFFERENT. You sure as hell don't tune that for maximum RF o; /archives//html/Amps/1999-11/msg00282.html (8,446 bytes)
3. [AMPS] Reduction Drive (score: 1): Author: mgilmer@gnlp.com (Gilmer, Mike); Date: Mon, 15 Nov 1999 12:20:09 -0500; I'm trying to "restore" a pair of ARD230A amps. RF decks and PS seem OK. They both make power. The few identified problems seem to be in the control crap. Go figure. Amongst these problems, I found t; /archives//html/Amps/1999-11/msg00329.html (7,894 bytes)
4. [AMPS] Eimac (score: 1): Author: mgilmer@gnlp.com (Gilmer, Mike); Date: Tue, 16 Nov 1999 11:50:37 -0500; I just received (Monday) a real datasheet (10 pages) for a 3CX800 triode. I went to Eimac's web site last Thursday and requested it. I'd call that fast. (Not sure why they don't have them posted yet; /archives//html/Amps/1999-11/msg00344.html (6,949 bytes)
5. [AMPS] Eimac (score: 1): Author: mgilmer@gnlp.com (Gilmer, Mike); Date: Tue, 16 Nov 1999 14:11:41 -0500; posted Seems everything is done with one of their "forms". My data sheet request was a form: http://www.eimac.com/reqform.htm Care and Feeding comments: http://www.eimac.com/comment.htm Mike N2MG --; /archives//html/Amps/1999-11/msg00350.html (7,503 bytes)
6. [AMPS] Eimac care and feeding (score: 1): Author: mgilmer@gnlp.com (Gilmer, Mike); Date: Tue, 16 Nov 1999 14:16:39 -0500; been in the same state I was afraid of that (sections 3+ are non-existent). Another typical web resource (out of date!). Maybe they lost their "Care and Feeding" advocate and now no one wants to be; /archives//html/Amps/1999-11/msg00351.html (8,141 bytes)
7. [AMPS] Eimac care and feeding/poor service (score: 1): Author: mgilmer@gnlp.com (Gilmer, Mike); Date: Wed, 17 Nov 1999 11:17:30 -0500; Pardon my naivete, I take it "Richardsons" is a manufacturers' representative? out Sounds like "Richardsons" and Eimac are both "arrogant" using your definition. I got my hard copy data sheet in a re; /archives//html/Amps/1999-11/msg00372.html (9,914 bytes)
8. [AMPS] Eimac care and feeding (score: 1): Author: mgilmer@gnlp.com (Gilmer, Mike); Date: Thu, 18 Nov 1999 08:49:11 -0500; On Thursday, November 18, 1999 12:21 AM, Jon Ogden [SMTP:jono@enteract.com] wrote: that Eimac You are absolutely correct, Jon. Many (dare I say most?) companies use their Marketing dept to "run" the; /archives//html/Amps/1999-11/msg00383.html (9,573 bytes)
9. [AMPS] Eimac care and feeding (score: 1): Author: mgilmer@gnlp.com (Gilmer, Mike); Date: Thu, 18 Nov 1999 09:33:00 -0500; my you This is a question I've often had. In the US, it's generally (always?) legal to photocopy copyrighted material for personal (e.g., research) use - or so I've been told by lawyers. If I scan so; /archives//html/Amps/1999-11/msg00384.html (9,310 bytes)
10. [AMPS] Z80 emulator for ARD230 repair (score: 1): Author: mgilmer@gnlp.com (Gilmer, Mike); Date: Thu, 18 Nov 1999 11:31:41 -0500; II hate to post this cross-reflector but it touches many "worlds". Please forgive the multiple intrusion. Does anyone out there have/know of a Z80 emulator? I have Advanced Radio Devices' ARD230A amp; /archives//html/Amps/1999-11/msg00389.html (8,409 bytes)
11. [AMPS] Little amps (score: 1): Author: mgilmer@gnlp.com (Gilmer, Mike); Date: Mon, 29 Nov 1999 16:46:46 -0500; On Friday, November 26, 1999 6:00 PM, Alek Petkovic [SMTP:vk6apk@eon.net.au] wrote: Sounds a bit like the 200W or higher (peak music power) "ratings" on some amplified computer speakers. Mike N2MG --; /archives//html/Amps/1999-11/msg00547.html (7,302 bytes)
12. [AMPS] Re: swr (score: 1): Author: mgilmer@gnlp.com (Gilmer, Mike); Date: Fri, 1 Oct 1999 12:58:28 -0400; Thanks to all who took the time to respond. By some responses, it seems there's some misunderstanding of what I wrote. ** I said: If the antenna/load impedance (at the far end) in question here doesn; /archives//html/Amps/1999-10/msg00018.html (8,274 bytes)
13. [AMPS] Re: swr (score: 1): Author: mgilmer@gnlp.com (Gilmer, Mike); Date: Fri, 1 Oct 1999 16:19:29 -0400; On Friday, October 01, 1999 2:28 PM, Jon Ogden [SMTP:jono@enteract.com] wrote: Correct? the along Yup, I guess it does. :( OK, so somewhat rhetorically... If the cable/antenna were treated as a black; /archives//html/Amps/1999-10/msg00027.html (9,487 bytes)
14. [AMPS] Re: swr (score: 1): Author: mgilmer@gnlp.com (Gilmer, Mike); Date: Fri, 1 Oct 1999 16:56:05 -0400; Hi Jon. Appreciate your time, but still having trouble... This email ping-pong certainly isn't the most efficient way to get technical concepts across :) On Friday, October 01, 1999 4:40 PM, Jon Ogde; /archives//html/Amps/1999-10/msg00029.html (10,316 bytes)
15. [AMPS] Re: swr (score: 1): Author: mgilmer@gnlp.com (Gilmer, Mike); Date: Mon, 4 Oct 1999 08:43:34 -0400; I smell another red herring. Whose odor is it this time? Mike N2MG VSWR has either outa -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Submissions: amps@contesting.com Administrative requests:; /archives//html/Amps/1999-10/msg00097.html (8,275 bytes)
16. [AMPS] SWR and line length, etc. (score: 1): Author: mgilmer@gnlp.com (Gilmer, Mike); Date: Mon, 4 Oct 1999 09:32:56 -0400; If I understand correctly: (some may doubt it, hi): The resonant frequency is the frequency when there is zero reactive (capacitive or inductive) component. Regardless of the actual impedance/resista; /archives//html/Amps/1999-10/msg00098.html (9,419 bytes)
17. [AMPS] Re: swr (score: 1): Author: mgilmer@gnlp.com (Gilmer, Mike); Date: Mon, 4 Oct 1999 09:45:32 -0400; No. The SWR is the same as we go around the circle but the impedance changes. Yes, but this is the opposite of what you said above! 73 Mike N2MG -- FAQ on WWW: http://www.contesting.com/ampsfaq.html; /archives//html/Amps/1999-10/msg00100.html (8,115 bytes)
18. [AMPS] SWR and line length, etc. (score: 1): Author: mgilmer@gnlp.com (Gilmer, Mike); Date: Mon, 4 Oct 1999 10:15:21 -0400; On Monday, October 04, 1999 9:57 PM, measures [SMTP:measures@vcnet.com] wrote: really the SWR of zero, huh? Pretty rough going. 73 Mike N2MG -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Subm; /archives//html/Amps/1999-10/msg00102.html (9,112 bytes)
19. [AMPS] SWR and line length, etc. (score: 1): Author: mgilmer@gnlp.com (Gilmer, Mike); Date: Mon, 4 Oct 1999 10:44:27 -0400; are Hmm. Me thinks you are right. For a given resistive part, adding any reactive component takes you outside the SWR circle for the resistive part alone (SWR goes up). Therefore, SWR minimum occurs; /archives//html/Amps/1999-10/msg00103.html (9,474 bytes)
20. [AMPS] The Worldwide, No Holds Barred, SWR Quiz. (score: 1): Author: mgilmer@gnlp.com (Gilmer, Mike); Date: Mon, 4 Oct 1999 11:22:08 -0400; Since I'm wearing egg anyway, more can't hurt. 1. Smith Chart says 1/2 wave cable brings you all the around back to the original load impedance (50 ohms, here). Therefore the black box of the cable/l; /archives//html/Amps/1999-10/msg00104.html (9,616 bytes)

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