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Total 119 documents matching your query.

61. No subject (score: 1)
Author: pcmeas@hotmail.com (Arlen Mendelssohn)
Date: Mon, 11 May 1998 22:26:51 PDT
Absolutely true. The actual reactances of the pi or pi-L network are critical, and one absolutely cannot intelligently design the suppressor without first measuring those reactances, as they are crit
/archives//html/Amps/1998-05/msg00168.html (11,529 bytes)

62. No subject (score: 1)
Author: pcmeas@hotmail.com (Arlen Mendelssohn)
Date: Mon, 11 May 1998 22:38:43 PDT
Rich, In the few months I have observed this reflector, you have used the word "rauch", usually lower-case but sometimes upper-case. I've assumed it's an abortive attempt to slander an author, but in
/archives//html/Amps/1998-05/msg00169.html (8,339 bytes)

63. No subject (score: 1)
Author: Peter_Chadwick@mitel.com (Peter Chadwick)
Date: Tue, 12 May 1998 13:49:54 +0100
Not in my 6L6's. Dad bought them in 1936, new, for the then equivalent of 50 cents. They don't glow blue, they don't have any measurable grid current, and they still meet the transconductance in the
/archives//html/Amps/1998-05/msg00170.html (8,134 bytes)

64. No subject (score: 1)
Author: jtml@lanl.gov (John Lyles)
Date: Thu, 14 May 1998 10:21:46 -0600
Counterpoint to the following comments - sorry now I got too interested. I realize that some of W7IUV's statements are jest, but.... A couple of years ago, at VOA transmitter site in Sri Lanka, a bra
/archives//html/Amps/1998-05/msg00232.html (12,839 bytes)

65. No subject (score: 1)
Author: w9ja@contesting.com (W9JA Paul Hellenberg)
Date: Thu, 28 May 1998 15:28:35 -0500
I have been told by more than one person that 8877s are used in some type of hospital equitment (CAT or MRI) and that these are changed out from time to time based on number of hours used. Does anyon
/archives//html/Amps/1998-05/msg00614.html (8,347 bytes)

66. No subject (score: 1)
Author: k5and@prestige.net (Dick Hanson)
Date: Mon, 13 Apr 1998 19:18:12 -0400
Test -- FAQ on WWW: http://www.contesting.com/ampfaq.html Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesting.com Problems: owner-amps@contesting.com Search: http://www.
/archives//html/Amps/1998-04/msg00086.html (7,340 bytes)

67. No subject (score: 1)
Author: jtml@lanl.gov (John Lyles)
Date: Fri, 17 Apr 1998 13:15:23 -0600
While we're on the parasitic subject (sorry to pump the ol' oscillators out there): I once had a disagreement with a competent RF designer of many years experience, who made big RF dielectric heaters
/archives//html/Amps/1998-04/msg00131.html (9,741 bytes)

68. No subject (score: 1)
Author: jtml@lanl.gov (John Lyles)
Date: Fri, 17 Apr 1998 16:47:08 -0600
You guys have me sitting up all night, worring about that big parasite that's gonna latch onto my work in the next few weeks. The plate circuit being laid out physically as we speak. The tune C is a
/archives//html/Amps/1998-04/msg00146.html (8,673 bytes)

69. No subject (score: 1)
Author: jtml@lanl.gov (John Lyles)
Date: Mon, 20 Apr 1998 11:25:19 -0600
"The way I was taught is that you key the amp with no drive and vary the caps all around and look for a kick in the plate or grid current. Do this on all bands and into a dummy load. If all is quiet
/archives//html/Amps/1998-04/msg00179.html (9,955 bytes)

70. No subject (score: 1)
Author: Peter_Chadwick@mitel.com (Peter Chadwick)
Date: Tue, 21 Apr 1998 12:30:09 +0100
Maybe I'm just getting old, but it sure seems that we can spend a lot of time re-inventing the wheel, and you can still learn a lot by going back to Terman ( and 'Millman and Taub') and maybe a few o
/archives//html/Amps/1998-04/msg00191.html (8,025 bytes)

71. No subject (score: 1)
Author: jtml@lanl.gov (John Lyles)
Date: Tue, 21 Apr 1998 13:15:30 -0600
I'm getting sucked in (sorry!). This is a long one, so bear with me, or hit DELETE now: -- PARASITICS I mentioned this before, (back in Dec. 1997) but the 1935 article in Proceedings of the IRE, by G
/archives//html/Amps/1998-04/msg00207.html (15,846 bytes)

72. No subject (score: 1)
Author: jtml@lanl.gov (John Lyles)
Date: Fri, 24 Apr 1998 15:04:29 -0600
I am very close to making a swept frequency measurement of a large Pi network, for a tetrode amplifier. The two vacuum variables are mounted vertically, by coincidence, because it makes for short pat
/archives//html/Amps/1998-04/msg00265.html (8,615 bytes)

73. No subject (score: 1)
Author: jtml@lanl.gov (John Lyles)
Date: Wed, 29 Apr 1998 10:34:36 -0600
Soeren, OZ1FTU, made this observation: I don't want to poo-poo parasitics, but there are some fundamental engineering points that you should be sure of before coming to that conclusion: Be careful ab
/archives//html/Amps/1998-04/msg00330.html (9,889 bytes)

74. No subject (score: 1)
Author: jtml@lanl.gov (John Lyles)
Date: Tue, 3 Mar 1998 16:30:20 -0700
Does anyone have any experience with this supplier of electron tubes? Bruckner - Electron Tubes for Industry Rockaway, NJ Their web site: http://www.elexs.com/ -- FAQ on WWW: http://www.contesting.co
/archives//html/Amps/1998-03/msg00039.html (7,377 bytes)

75. No subject (score: 1)
Author: KF6IKC@webtv.net (KF6IKC@webtv.net)
Date: Sun, 8 Mar 1998 16:24:48 -0800
Your right Carl....in my humble opinion I do own the best. Commander 2500E.Clean, reliable, watts. And P.R. from the company that speaks for it's self. I glad to see you voice your feelings. As far a
/archives//html/Amps/1998-03/msg00071.html (7,704 bytes)

76. No subject (score: 1)
Author: wd8o@csi.com (Steve Murphy)
Date: Mon, 9 Mar 1998 19:48:02 -0500
This is a multi-part message in MIME format. --=_NextPart_000_0044_01BD4B94.4599EB00 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable KF6IKC needs to get a s
/archives//html/Amps/1998-03/msg00125.html (8,261 bytes)

77. No subject (score: 1)
Author: Peter.Chadwick@gpsemi.com (Peter Chadwick)
Date: Tue, 10 Mar 1998 09:13:14 -0000
Real beer i.e. stuff with taste, is designed for room temperature drinking. Lagers are not. And 'standard' beers like Buttwiper Lite and Fosters go through the human frame and come out unchanged. I c
/archives//html/Amps/1998-03/msg00138.html (7,546 bytes)

78. No subject (score: 1)
Author: Peter.Chadwick@gpsemi.com (Peter Chadwick)
Date: Tue, 10 Mar 1998 17:54:37 -0000
Could someone explain how 3000 watt, 50% duty cycle amplifiers are legal in the amateur service in the US? Or is my copy of Part 97 out of date? (Specifically 97.313, but 97.317 also implies that typ
/archives//html/Amps/1998-03/msg00152.html (7,571 bytes)

79. No subject (score: 1)
Author: ke1fo@contesting.com (Alfred J. Frugoli)
Date: Fri, 13 Mar 1998 00:31:48 -0500
This is a multi-part message in MIME format. --CEA85F965F527E1506703E4C Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit --CEA85F965F527E1506703E4C Content-Type: text/x-vcar
/archives//html/Amps/1998-03/msg00224.html (7,816 bytes)

80. No subject (score: 1)
Author: jtml@lanl.gov (John Lyles)
Date: Mon, 16 Mar 1998 11:24:11 -0700
Hi, "Do you have any additional data on tubes that are confined to the 500W to 2.5KW useable output range?" Sorry, don't have any info on these. The word MEASURED does seem to indicate that they were
/archives//html/Amps/1998-03/msg00325.html (7,392 bytes)


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