Search String: Display: Description: Sort:

Results:

References: [ +from:rbonner@qro.com: 226 ]

Total 226 documents matching your query.

61. Re: [Amps] SB-220 grid current (score: 1)
Author: "Robert B. Bonner" <rbonner@qro.com>
Date: Fri, 24 Nov 2006 17:02:58 -0600
No plate voltage Hi Gang.......what could cause the grid meter to swing negative and no power out? Leon, N5PU _______________________________________________ Amps mailing list Amps@contesting.com htt
/archives//html/Amps/2006-11/msg00261.html (7,429 bytes)

62. Re: [Amps] Collins 30L-1 Bouncy Meter (score: 1)
Author: "Robert B. Bonner" <rbonner@qro.com>
Date: Mon, 27 Nov 2006 17:48:01 -0600
Jerry, While this isn't the sure fire problem, I would first guess dirty meter switch contacts. Buy some non-lubricating contact and switch cleaner from Home "Despot" in the electrical department, sl
/archives//html/Amps/2006-11/msg00270.html (8,531 bytes)

63. Re: [Amps] Buying Amp (score: 1)
Author: "Robert B. Bonner" <rbonner@qro.com>
Date: Wed, 29 Nov 2006 12:57:02 -0600
I haven't gone out and looked at what anybody has said about any of these amplifiers. However, I thought I'd mention a buddy of mine bought a new PW-1 and it went wacky within a week of coming out of
/archives//html/Amps/2006-11/msg00275.html (8,896 bytes)

64. [Amps] METER PROGRAM (score: 1)
Author: "Robert B. Bonner" <rbonner@qro.com>
Date: Wed, 29 Nov 2006 23:38:17 -0600
GUYS, I thought I'd make a quick review of Jim Tonne's (Tonne Software) Meter program. Someone had asked about rescaling meters a while ago and yesterday I performed 4 meter rescales with this softwa
/archives//html/Amps/2006-11/msg00278.html (7,597 bytes)

65. Re: [Amps] Low Pass Filters (score: 1)
Author: "Robert B. Bonner" <rbonner@qro.com>
Date: Mon, 4 Dec 2006 03:15:48 -0600
Tony, The problem isn?t going to be so much the voltage as the current. The impedance of the filter is going to be 50 ohms. That alone will keep the voltage under tow. The current through the filter
/archives//html/Amps/2006-12/msg00008.html (9,984 bytes)

66. Re: [Amps] Low Pass Filters (score: 1)
Author: "Robert B. Bonner" <rbonner@qro.com>
Date: Mon, 4 Dec 2006 11:44:57 -0600
Duane, My buddy abruptly stopped working on that project. He apparently got busy with too many irons in too many fires. He wasn?t planning on using an attenuator, just more modules. :-) I don?t know
/archives//html/Amps/2006-12/msg00015.html (13,372 bytes)

67. Re: [Amps] FW: Re: current ratings (score: 1)
Author: "Robert B. Bonner" <rbonner@qro.com>
Date: Tue, 5 Dec 2006 15:23:43 -0600
Now there's what I was talking about Tony, I love it when they can give you some solid answers. As usual the 1000V caps have greater current capability due to their size. NOTE: I also want to state t
/archives//html/Amps/2006-12/msg00032.html (10,733 bytes)

68. Re: [Amps] 30L-1 filter caps (score: 1)
Author: "Robert B. Bonner" <rbonner@qro.com>
Date: Wed, 13 Dec 2006 14:44:01 -0600
Sam, the Collins still has a collector's value. I would replace the parts with as close to stock as possible to retain that. BOB DD --Original Message-- From: amps-bounces@contesting.com [mailto:amps
/archives//html/Amps/2006-12/msg00084.html (9,058 bytes)

69. Re: [Amps] QST (score: 1)
Author: "Robert B. Bonner" <rbonner@qro.com>
Date: Mon, 18 Dec 2006 14:06:46 -0600
Yes it is a pretty sorry state of affairs. The NCJ was started by the Minnesota Wireless Association in the early 70's and when Tod Olson became a VP of the ARRL the league "Bought" took over whateve
/archives//html/Amps/2006-12/msg00150.html (8,802 bytes)

70. Re: [Amps] Pi-L Tank on TenTec Titan 425 (score: 1)
Author: "Robert B. Bonner" <rbonner@qro.com>
Date: Thu, 21 Dec 2006 16:24:44 -0600
You don't want to be physically modifying by adding coils. The fix could be to bend the 10 meter section only of the tank coil slightly. It should only take 1/4". For instance the difference between
/archives//html/Amps/2006-12/msg00196.html (9,745 bytes)

71. Re: [Amps] *** SPAM *** Re: Alpha 87a (score: 1)
Author: "Robert B. Bonner" <rbonner@qro.com>
Date: Tue, 2 Jan 2007 16:34:59 -0600
Reflecting on my Collins service days. 15 meters was the band that suffered without the 21.5' cable. That's all. The customers all expected the LOADING control on the exciters to sit exactly on 50 oh
/archives//html/Amps/2007-01/msg00029.html (11,260 bytes)

72. Re: [Amps] Grid to Cathode Short (score: 1)
Author: "Robert B. Bonner" <rbonner@qro.com>
Date: Mon, 8 Jan 2007 11:04:30 -0600
I used to own one of those things, but don't have a schematic left around when it went away. Yes I agree it sounds more power supply oriented to me too. Those things are real toasters... The PS even
/archives//html/Amps/2007-01/msg00077.html (8,388 bytes)

73. Re: [Amps] schamatis 160 meter amp using 3cx3000a7 (score: 1)
Author: "Robert B. Bonner" <rbonner@qro.com>
Date: Fri, 12 Jan 2007 11:52:17 -0600
3X3 = 3CX3000A7, 4X5 = 4CX5000*, 4X1 = 4-1000A, 4X3 = 4CX3000A. The correct Pronunciation is Three By Three. Little tubes are referred to like "a couple three fives" 35 = 3-500Z's. But mostly are ign
/archives//html/Amps/2007-01/msg00091.html (7,948 bytes)

74. Re: [Amps] schamatis 160 meter amp using 3cx3000a7 (score: 1)
Author: "Robert B. Bonner" <rbonner@qro.com>
Date: Fri, 12 Jan 2007 14:04:37 -0600
HA, because in the "Old Days" there wasn't keyboards in radio shacks, the words "Three By Three" or "MOJO" came out of your mouth and not a keyboard. Even after working in the computer world for a zi
/archives//html/Amps/2007-01/msg00094.html (12,892 bytes)

75. Re: [Amps] schamatis 160 meter amp using 3cx3000a7 (score: 1)
Author: "Robert B. Bonner" <rbonner@qro.com>
Date: Fri, 12 Jan 2007 18:53:13 -0600
3x200? Now you aren't allowed to BS us Bill, that's rude. Eimac has Built 150's and then jumped to 8972's in triodes. They also have a problem in tetrodes they go from 100's to 250's bypassing the 20
/archives//html/Amps/2007-01/msg00101.html (13,639 bytes)

76. Re: [Amps] schamatis 160 meter amp using 3cx3000a7 (score: 1)
Author: "Robert B. Bonner" <rbonner@qro.com>
Date: Fri, 12 Jan 2007 19:33:41 -0600
Hey Gary no problem. You wanna really get confused Tom and I will start spewing RACECAR Jargon intermixed with the radio stuff. That point it could take "THE" book to decipher. Here's a term that wor
/archives//html/Amps/2007-01/msg00103.html (16,402 bytes)

77. Re: [Amps] Alpha 99 problem (score: 1)
Author: "Robert B. Bonner" <rbonner@qro.com>
Date: Mon, 15 Jan 2007 10:24:15 -0600
Dear thoughtful radio amateur, Well yeah? Next time you try and clean out the Alpha 99 AMPLIFIER use a vacuum and maybe some spray contact cleaner. Using your Wife's dishwasher is currently not a cer
/archives//html/Amps/2007-01/msg00158.html (8,587 bytes)

78. Re: [Amps] SB-220 Improvements (score: 1)
Author: "Robert B. Bonner" <rbonner@qro.com>
Date: Mon, 15 Jan 2007 10:30:50 -0600
Yeah well if it is printed in QST it is approved by God himself isn't it? You cant believe everything you read. I agree with Lou, the 220 is best converted to completely be on 6 meters by itself. The
/archives//html/Amps/2007-01/msg00159.html (9,087 bytes)

79. Re: [Amps] Amp 10 m Output Fold Back (score: 1)
Author: "Robert B. Bonner" <rbonner@qro.com>
Date: Mon, 15 Jan 2007 17:31:33 -0600
I have extensive experience with the 746PRO. The 746PRO has a computer controlled fold back circuit in it HARD CODED for 8 watts reflected for a total power fold back. It is NOT ADJUSTABLE. You will
/archives//html/Amps/2007-01/msg00163.html (9,334 bytes)

80. Re: [Amps] SB-220 Improvements (score: 1)
Author: "Robert B. Bonner" <rbonner@qro.com>
Date: Mon, 15 Jan 2007 11:57:52 -0600
Yes my single 8877 (Hank 3006) works really nice on 6 meters. :-) All I've given up is floor space. BOB DD I wouldn't use a pair of 3-500Z's on six meters even if it was dedicated. I use 3CX800A7's o
/archives//html/Amps/2007-01/msg00165.html (8,558 bytes)

Current List: 61 - 80
Page: [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12]
This search system is powered by Namazu