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Total 82 documents matching your query.

21. [AMPS] Zo of SWR meters (score: 1)
Author: w7iuv@axtek.com (Larry Molitor)
Date: Thu, 07 Oct 1999 23:10:04 +0100
Roger, I'm curious. I have two 43's but no manual so I can't look it up. What is in the manual that leads you to say that? 73, Larry - W7IUV w7iuv@arrl.net http://www.axtek.com/w7iuv Amp pix at http:
/archives//html/Amps/1999-10/msg00264.html (7,614 bytes)

22. [AMPS] The things you see Homebrew Amplifiers (score: 1)
Author: w7iuv@axtek.com (Larry Molitor)
Date: Thu, 07 Oct 1999 23:19:49 +0100
Certainly a reasonable precaution with tubes like 813's. Not a problem with 4-400 class tubes. Take a close look at one, you'll see why. 73, Larry - W7IUV w7iuv@arrl.net http://www.axtek.com/w7iuv Am
/archives//html/Amps/1999-10/msg00265.html (9,542 bytes)

23. [AMPS] The Best Value or Best AMP! (score: 1)
Author: w7iuv@axtek.com (Larry Molitor)
Date: Thu, 07 Oct 1999 23:24:29 +0100
Phil, My personal criteria for quality is: "If it ain't big enough to kill you if it falls on you, it ain't worth having." Some might argue the point. Each to his own. 73, Larry - W7IUV w7iuv@arrl.ne
/archives//html/Amps/1999-10/msg00266.html (9,149 bytes)

24. [AMPS] The things you see Homebrew Amplifiers (score: 1)
Author: w7iuv@axtek.com (Larry Molitor)
Date: Fri, 08 Oct 1999 23:16:11 +0100
Pete, I'm interested in this experience of yours because I was never able to purposely get a tube to do that. I always experimented with small tubes (spell that c-h-e-a-p) of similar size. I could ea
/archives//html/Amps/1999-10/msg00319.html (9,274 bytes)

25. [AMPS] The things you see Homebrew Amplifiers (score: 1)
Author: w7iuv@axtek.com (Larry Molitor)
Date: Fri, 08 Oct 1999 22:57:55 +0100
Hmmmm. Interesting. What brand tubes do you have, Pat? I have maybe 18 or so around here. Eimac's, Penta's and Amperex's in the bunch. All of them have the larger cap set screwed to the (Kovar?) ano
/archives//html/Amps/1999-10/msg00320.html (10,410 bytes)

26. [AMPS] More Relevant SWR FINAL EXAM (score: 1)
Author: w7iuv@axtek.com (Larry Molitor)
Date: Tue, 12 Oct 1999 02:39:39 +0100
An "isolator" is a "circulator" with a built-in termination on one of the ports. It does not have to be 50 ohms, but usually is because it's almost always used at microwave. A circulator (or Isolator
/archives//html/Amps/1999-10/msg00392.html (10,010 bytes)

27. [AMPS] Those Big CB Amps. (score: 1)
Author: w7iuv@axtek.com (Larry Molitor)
Date: Thu, 14 Oct 1999 22:29:22 +0100
I wish those CB type would cough up some real quality photographs for the AMPS PIX page. I wanna see how you stuff 8 3-500Z's in a box. 73, Larry - W7IUV w7iuv@arrl.net http://www.axtek.com/w7iuv Amp
/archives//html/Amps/1999-10/msg00474.html (6,751 bytes)

28. [AMPS] Amp photos (score: 1)
Author: w7iuv@axtek.com (Larry Molitor)
Date: Wed, 08 Sep 1999 22:34:33 +0100
Received a bunch more photos for the amp photo page today. Now I'm really behind. I have an out-of-town trip coming up soon, so won't be able to get much done till after that. Stay tuned. When I trie
/archives//html/Amps/1999-09/msg00040.html (7,257 bytes)

29. [AMPS] Re: Topband: Top loaded verticals (score: 1)
Author: w7iuv@axtek.com (Larry Molitor)
Date: Fri, 17 Sep 1999 05:02:15 +0100
Steve, I played around with computer models and then built some 30 meter scale models for verification when faced with the same problem. My experiments proved, to me at least, that drooping top hat w
/archives//html/Amps/1999-09/msg00138.html (8,095 bytes)

30. [AMPS] Silver Plating (score: 1)
Author: w7iuv@axtek.com (Larry Molitor)
Date: Thu, 23 Sep 1999 04:40:56 +0100
I think we have another thread de-railed by the wanna-be scientist debating society. Who gives a shit if silver is better then copper? Or vice versa? In all the years I've been building and scrapping
/archives//html/Amps/1999-09/msg00233.html (9,039 bytes)

31. [AMPS] L-Pi net...downside? (score: 1)
Author: w7iuv@axtek.com (Larry Molitor)
Date: Mon, 02 Aug 1999 02:39:48 +0100
Phil, I've never run across such an animal. Could you describe it in more detail, manufacturer, etc.? Sounds like it would be a very useful device. 73, Larry - W7IUV w7iuv@arrl.net http://www.axtek.c
/archives//html/Amps/1999-08/msg00014.html (8,103 bytes)

32. [AMPS] Front Panel Labeling ??? (score: 1)
Author: w7iuv@axtek.com (Larry Molitor)
Date: Fri, 06 Aug 1999 22:51:57 +0100
Terry, I do that and many other drawing tasks with EZCAD by evolution computing. 73, Larry - W7IUV w7iuv@arrl.net http://www.axtek.com/w7iuv Amp pix at http://207.108.137.61 -- FAQ on WWW: http://www
/archives//html/Amps/1999-08/msg00144.html (8,223 bytes)

33. [AMPS] Doorknob Capacitor Questions (score: 1)
Author: w7iuv@axtek.com (Larry Molitor)
Date: Sun, 08 Aug 1999 18:00:58 +0100
Bill, Copper flashing can still be purchased from some plumbing supply shops. They may even be able to sheer it into 1/2 inch wide strips for you. Otherwise, do it with a pair of tin snips. Sheet met
/archives//html/Amps/1999-08/msg00160.html (8,464 bytes)

34. [AMPS] Coils (score: 1)
Author: w7iuv@axtek.com (Larry Molitor)
Date: Wed, 02 Jun 1999 22:52:41 +0100
Peter, I wind my large coils on a form that is about 20% or so smaller in diameter then the smooth finish form. Wind on a couple extra turns. When finished winding, the coil expands some and falls of
/archives//html/Amps/1999-06/msg00070.html (7,753 bytes)

35. [AMPS] Parasitics (score: 1)
Author: w7iuv@axtek.com (Larry Molitor)
Date: Mon, 21 Jun 1999 23:07:52 +0100
Since the parasitic debate has died down, maybe we can get it going again! I offer the following two experiences to the group for comments and/or discussion. In the past year, I have put together two
/archives//html/Amps/1999-06/msg00564.html (9,935 bytes)

36. [AMPS] Parasitics (score: 1)
Author: w7iuv@axtek.com (Larry Molitor)
Date: Tue, 22 Jun 1999 19:36:34 +0100
Since I didn't find any little coils wound around little resistors the last time I broke a 813 apart, I assume you are refering to the limited frequency response caused by the internal geometry. Inte
/archives//html/Amps/1999-06/msg00573.html (8,655 bytes)

37. [AMPS] re: 4cx1000 (score: 1)
Author: w7iuv@axtek.com (Larry Molitor)
Date: Wed, 23 Jun 1999 23:57:23 +0100
Hi Gerard, Glad it all worked out for you. I never meant to say it couldn't be done, just that it wasn't worth my time to do it. After all those years of putting up with that tubes idiosyncrasies, I
/archives//html/Amps/1999-06/msg00611.html (7,971 bytes)

38. [AMPS] YC156 Photos (score: 1)
Author: w7iuv@axtek.com (Larry Molitor)
Date: Thu, 24 Jun 1999 00:12:31 +0100
Sorry Phil, you are completly off base here. I have never seen a cap with a "power rating". Those caps are rated for 20 kv breakdown voltage. They have very low leakage. Like most ceramic caps, the c
/archives//html/Amps/1999-06/msg00612.html (9,103 bytes)

39. [AMPS] Peak reading vs True peak (score: 1)
Author: w7iuv@axtek.com (Larry Molitor)
Date: Thu, 24 Jun 1999 00:19:29 +0100
The real problem with the peak reading meter is that most of them don't. If it cost less then 300 bux, it doesn't read peak no matter what the ads say. It's real easy to buy crap these days. 73, Larr
/archives//html/Amps/1999-06/msg00613.html (9,603 bytes)

40. [AMPS] YC156 Photos (score: 1)
Author: w7iuv@axtek.com (Larry Molitor)
Date: Thu, 24 Jun 1999 00:33:46 +0100
Not true Bob! I pay attentention to Rich and Tom and Carl and everyone else. There is much to be learned and the secret is to seperate the wheat from the chaff. Just for the record, if the YC156 had
/archives//html/Amps/1999-06/msg00614.html (8,257 bytes)


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