Search String: Display: Description: Sort:

Results:

References: [ +from:n2bc@stny.rr.com: 93 ]

Total 93 documents matching your query.

61. Re: [Amps] upcoming CPI/Eimac move --- TSPA (score: 1)
Author: "Bill Coleman N2BC" <n2bc@stny.rr.com>
Date: Wed, 22 Sep 2004 18:08:50 -0400
WOW, I hope their processes (tube testers, HI HI) work better than their spell checker. Pretty sloppy for a customer letter. Don't get me wrong, I have always admired Eimac - but the public 'face' of
/archives//html/Amps/2004-09/msg00414.html (9,842 bytes)

62. [Amps] Dummy loads (score: 1)
Author: "Bill Coleman N2BC" <n2bc@stny.rr.com>
Date: Fri, 24 Sep 2004 08:57:32 -0400
All this chatter about dummy loads... There are usually many Bird loads posted on the e-place. A quick look shows six 500W or better right now at $60 or less. Of course the usual caveats apply, but I
/archives//html/Amps/2004-09/msg00442.html (7,111 bytes)

63. Re: [Amps] knob & meter scales (score: 1)
Author: "Bill Coleman N2BC" <n2bc@stny.rr.com>
Date: Sat, 16 Oct 2004 20:13:41 -0400
Hi George, I use an inexpensive general purpose CAD program, DELTACAD ($40). http://www.dcad.com/ I have been using it for schematics, chassis and panel layouts, panel labels, meter scales, etc. It m
/archives//html/Amps/2004-10/msg00229.html (9,281 bytes)

64. Re: [Amps] Ten-Tec Centurion (score: 1)
Author: "Bill Coleman N2BC" <n2bc@stny.rr.com>
Date: Thu, 11 Nov 2004 09:27:20 -0500
Interesting discussion, but has anybody looked at the diagram of the Centurion? I had a TT Titan ages ago, it indeed has RF sensing on the input. But the purpose was to inhibit RX/TX transfer to prev
/archives//html/Amps/2004-11/msg00144.html (11,924 bytes)

65. [Amps] Pacemaker discussion (score: 1)
Author: "Bill Coleman N2BC" <n2bc@stny.rr.com>
Date: Sun, 14 Nov 2004 11:32:40 -0500
Some info: http://www.arrl.org/tis/info/pacemaker.html _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2004-11/msg00204.html (6,192 bytes)

66. [Amps] Tetrode tuneup (score: 1)
Author: "Bill Coleman N2BC" <n2bc@stny.rr.com>
Date: Mon, 14 Mar 2005 16:08:42 -0500
Adding a "tune" mode to an AM RF PA with a pair of 4-400s. What's better... floating the screens or grounding the screens. Does it matter? To round out the picture: no bias supply (grid leak bias onl
/archives//html/Amps/2005-03/msg00322.html (7,200 bytes)

67. Re: [Amps] Shorting Sticks (score: 1)
Author: "Bill Coleman N2BC" <n2bc@stny.rr.com>
Date: Sun, 24 Apr 2005 16:52:56 -0400
As one that has literally come across an open 225W bleeder.... I would never trust a resistor in series with the shorting stick. If the caps are charged, something has already failed. If the caps get
/archives//html/Amps/2005-04/msg00494.html (13,003 bytes)

68. Re: [Amps] Shorting Sticks (score: 1)
Author: "Bill Coleman N2BC" <n2bc@stny.rr.com>
Date: Sun, 24 Apr 2005 21:28:41 -0400
I'm not sure what resistor you are referring to Rich. In the power supply that bit me there were two 100K 225W resistors in series across 4KV and one was open - no arcing. Examination of the open res
/archives//html/Amps/2005-04/msg00509.html (10,645 bytes)

69. Re: [Amps] TV sweep tubes and 6146s (score: 1)
Author: "Bill Coleman N2BC" <n2bc@stny.rr.com>
Date: Wed, 10 Aug 2005 07:47:46 -0400
$$$ Sweep tubes were $3, 6146's were $8 to $10. Even better, you could re-tube a sweeper at Radio Shack with a handful of guaranteed forever tubes and never pay for another one. I used to freebie rep
/archives//html/Amps/2005-08/msg00372.html (8,431 bytes)

70. Re: [Amps] Alpha releases New Amp 9500 (score: 1)
Author: "Bill Coleman N2BC" <n2bc@stny.rr.com>
Date: Sat, 17 Sep 2005 18:47:31 -0400
Take a peek at Agilent and Tektronix..... Yes, RS-232 and GPIB and wait for it USB. 73, Bill N2BC _______________________________________________ Amps mailing list Amps@contesting.com http://lists.co
/archives//html/Amps/2005-09/msg00183.html (10,164 bytes)

71. Re: [Amps] Power cord to use when converting AL-80B to 240 volts? (score: 1)
Author: "Bill Coleman N2BC" <n2bc@stny.rr.com>
Date: Sat, 1 Oct 2005 19:15:46 -0400
There is no reason to replace the cord if it is rated @ 300V *AND* the device does not need Neutral (the 4th wire on 240V). The current it will be required to handle @ 240V will be half of what it ha
/archives//html/Amps/2005-10/msg00020.html (12,488 bytes)

72. Re: [Amps] air variable min C? (score: 1)
Author: "Bill Coleman N2BC" <n2bc@stny.rr.com>
Date: Sun, 2 Oct 2005 13:07:48 -0400
Instead of lowering Cmin at Ctune, you can insert a small L between the tube and the blocking cap. This has the effect of raising the plate load resistance and increasing the minimum Ctune required a
/archives//html/Amps/2005-10/msg00045.html (10,464 bytes)

73. Re: [Amps] Power cord to use when converting AL-80B to 240 volts? (score: 1)
Author: "Bill Coleman N2BC" <n2bc@stny.rr.com>
Date: Sun, 2 Oct 2005 16:48:27 -0400
I don't understand why the power load difference between AM or SSB... Legal limit on AM is 375W carrier, at 100% modulation you get 1500W. In terms of peak power 1500W AM = 1500W SSB. Now... if that'
/archives//html/Amps/2005-10/msg00056.html (13,375 bytes)

74. [Amps] Fw: Power cord to use when converting AL-80B to 240 volts? (score: 1)
Author: "Bill Coleman N2BC" <n2bc@stny.rr.com>
Date: Sun, 2 Oct 2005 16:56:14 -0400
It is quite OK to use the white on one of the phases in a 240V hookup. It is never OK to use green to anything other than ground. Most modern amps have no need for neutral when wired for 240V. If neu
/archives//html/Amps/2005-10/msg00058.html (9,346 bytes)

75. Re: [Amps] Power cord to use when converting AL-80B to 240 volts? (score: 1)
Author: "Bill Coleman N2BC" <n2bc@stny.rr.com>
Date: Sun, 2 Oct 2005 17:59:33 -0400
I don't argue about the duty cycle... a linear in AM service is working at 375W minimum all the time at legal limit. But the discussion was about AC input power requirements. The capability of the tr
/archives//html/Amps/2005-10/msg00062.html (16,508 bytes)

76. Re: [Amps] FW: alpha 87a and Pro II question (score: 1)
Author: "Bill Coleman N2BC" <n2bc@stny.rr.com>
Date: Wed, 12 Oct 2005 15:21:27 -0400
I don't know about an Alpha, but I do know what happens when you run 600W into a TenTec Titan. I had a small brain lapse when I reconfigured things in the shack and ran my KWS-1 through the Titan. Th
/archives//html/Amps/2005-10/msg00299.html (8,729 bytes)

77. [Amps] FS: Harris RF-110A / RF-124 No-tune amp (score: 1)
Author: "Bill Coleman N2BC" <n2bc@stny.rr.com>
Date: Wed, 5 Dec 2007 13:03:47 -0500
Harris RF-110A and RF-124 power supply, spares, manual, cables, 200W attenuator, remote control box - ready to go. Please see my website for info: http://home.stny.rr.com/n2bc/ 73, Bill N2BC ________
/archives//html/Amps/2007-12/msg00016.html (6,807 bytes)

78. Re: [Amps] SB200 on 6m & my take (score: 1)
Author: Bill Coleman <n2bc@stny.rr.com>
Date: Fri, 13 Mar 2009 12:53:45 -0400
I'll chip in... Svetlana, kind of old (I saved a PDF of it in 2001) 30mHz Bill N2BC _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/m
/archives//html/Amps/2009-03/msg00381.html (11,252 bytes)

79. Re: [Amps] 3CX800 and blower (score: 1)
Author: Bill Coleman <n2bc@stny.rr.com>
Date: Tue, 08 Sep 2009 10:29:35 -0400
A quick story regarding a 2-speed switch... I had a 1st generation TenTec Titan (pair of 3CX800s), its 2-speed fan switch is located on the power supply. I regularly operate wearing headphones & one
/archives//html/Amps/2009-09/msg00090.html (10,612 bytes)

80. Re: [Amps] 3CX800 and blower (score: 1)
Author: Bill Coleman <n2bc@stny.rr.com>
Date: Tue, 08 Sep 2009 12:44:49 -0400
Cheesy rocker style switch that would easily sit mid-throw.... OFF! _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/
/archives//html/Amps/2009-09/msg00094.html (13,477 bytes)

Current List: 61 - 80
Page: [1] [2] [3] [4] [5]
This search system is powered by Namazu