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61. Re: [Amps] Amp question (score: 1)
Author: Karl-Arne Markstr&ouml;m <sm0aom@telia.com>
Date: Tue, 26 Jul 2005 16:46:23 +0200
A "conventional combiner" is more often than not a "zero-degree combining network". For a through discussion of power dividers and combiners take a look at: http://www.minicircuits.com/appnote/an1000
/archives//html/Amps/2005-07/msg00321.html (15,799 bytes)

62. Re: [Amps] Harris RF-110A connector (score: 1)
Author: Karl-Arne Markstr&ouml;m <sm0aom@telia.com>
Date: Fri, 29 Jul 2005 15:58:44 +0200
This connector is currently made by ITT-Cannon, and is shown on page 13 of the http://www.ittcannon.com/media/pdf/catalogs/full/CO_circular_MS_EURO.pdf catalog. However, prepare for a shock if reques
/archives//html/Amps/2005-07/msg00356.html (9,282 bytes)

63. [Amps] Relative influence of components to tonal quality (Was: WrongBusiness) (score: 1)
Author: Karl-Arne Markstr&ouml;m <sm0aom@telia.com>
Date: Fri, 5 Aug 2005 15:46:23 +0200
In the words of a lesser known competitor to the late P.T. Barnum: "There is a sucker born every minute..." It appears that the audio industry can make claims that would make used car salesmen blush.
/archives//html/Amps/2005-08/msg00163.html (11,867 bytes)

64. Re: [Amps] Fwd: 6146's (score: 1)
Author: Karl-Arne Markstr&ouml;m <sm0aom@telia.com>
Date: Tue, 9 Aug 2005 10:06:14 +0200
It appears that they were put there by the manufacturers, and they ought to know. Comparing the data in the Philips/Mullard January 1970 databook for the QE05/40 (6146A) and YL1370 (6146B) the diffe
/archives//html/Amps/2005-08/msg00319.html (10,184 bytes)

65. Re: [Amps] TV sweep tubes and 6146s (score: 1)
Author: Karl-Arne Markstr&ouml;m <sm0aom@telia.com>
Date: Wed, 10 Aug 2005 13:45:16 +0200
Without grossly abusing the 6146's, you cannot expect more than about 250 W PEP output from four 6146 tubes. The reason that sweep tubes can give more power is that they have very large peak emission
/archives//html/Amps/2005-08/msg00371.html (9,659 bytes)

66. Re: [Amps] TV sweep tubes and 6146s (score: 1)
Author: Karl-Arne Markstr&ouml;m <sm0aom@telia.com>
Date: Wed, 10 Aug 2005 17:43:23 +0200
I would tend to agree with Peter. The surplus 813 is probably one of the available tubes with best W/$, but a factor may be the cost of the HV power supply. This is one of the problems with most inex
/archives//html/Amps/2005-08/msg00381.html (13,639 bytes)

67. Re: [Amps] TV sweep tubes and 6146s (score: 1)
Author: Karl-Arne Markstr&ouml;m <sm0aom@telia.com>
Date: Wed, 10 Aug 2005 18:27:00 +0200
This particular transformer was a special brand of surplus HV transformer, coming out of the first generation microwave ovens from the Swedish manufacturer Husqvarna. It had a 2200 V 1,1 A CCS second
/archives//html/Amps/2005-08/msg00383.html (10,583 bytes)

68. Re: [Amps] TV sweep tubes and 6146s (score: 1)
Author: Karl-Arne Markstr&ouml;m <sm0aom@telia.com>
Date: Wed, 10 Aug 2005 22:05:52 +0200
Speaking of 'grossly abuse', I found some SSB ratings for the 6146 family in my worn copy of the W6SAI 'Radio Handbook 18th Ed' If you apply a liberal definition of 'linear', it would be possible to
/archives//html/Amps/2005-08/msg00391.html (14,158 bytes)

69. Re: [Amps] [BULK] - Sierra Electronics 5kW load/meter (score: 1)
Author: Karl-Arne Markstr&ouml;m <sm0aom@telia.com>
Date: Wed, 17 Aug 2005 20:23:59 +0200
This load looks very similar to units that I came across in the 80's when working for the Swedish military. If it corresponds to this general type, it is a peak reading termination wattmeter intended
/archives//html/Amps/2005-08/msg00567.html (11,471 bytes)

70. Re: [Amps] [BULK] - Sierra Electronics 5kW load/meter (score: 1)
Author: Karl-Arne Markstr&ouml;m <sm0aom@telia.com>
Date: Wed, 17 Aug 2005 21:56:01 +0200
The time such a load, when rated for pulsed waveforms, holds up for CW loads in the kW range is in the order of a few seconds, at the most. Many of these loads contain thin-film resistors which are v
/archives//html/Amps/2005-08/msg00577.html (14,201 bytes)

71. Re: [Amps] [BULK] - Sierra Electronics 5kW load/meter (score: 1)
Author: Karl-Arne Markstr&ouml;m <sm0aom@telia.com>
Date: Thu, 18 Aug 2005 08:03:23 +0200
In free air, the rating should be about 100 W, and in oil, depending on the design of the oil container maybe 800 - 1000 W. If the oil container is designed so there is a convection flow, the rating
/archives//html/Amps/2005-08/msg00589.html (18,551 bytes)

72. Re: [Amps] Amp Question (score: 1)
Author: Karl-Arne Markstr&ouml;m <sm0aom@telia.com>
Date: Mon, 22 Aug 2005 18:40:09 +0200
The Rockwell/Collins HF-8023/32 together with the HF-8040 tuner does exactly this. Some newer equipment from the Spectrum 2000 and URG-III families may also have a similar function. 73/ Karl-Arne SM0
/archives//html/Amps/2005-08/msg00657.html (8,883 bytes)

73. Re: [Amps] Amp Question (score: 1)
Author: Karl-Arne Markstr&ouml;m <sm0aom@telia.com>
Date: Mon, 22 Aug 2005 19:02:48 +0200
To say nothing of what they cost new... 73/ Karl-Arne SM0AOM _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2005-08/msg00659.html (10,620 bytes)

74. Re: [Amps] Kon-Tiki (score: 1)
Author: Karl-Arne Markstr&ouml;m <sm0aom@telia.com>
Date: Sat, 3 Sep 2005 09:50:45 +0200
If I remember the exhibition in the Oslo Kon-Tiki museum correctly, at least one of the transmitters was the British "suitcase set" that was known as "Berit" in the Norwegian resistance movement. It
/archives//html/Amps/2005-09/msg00016.html (11,140 bytes)

75. Re: [Amps] Xmtr output impedance? (score: 1)
Author: Karl-Arne Markstr&ouml;m <sm0aom@telia.com>
Date: Mon, 5 Sep 2005 17:53:47 +0200
Hello, First a few assumptions: (1) The 2 x 1625's are in push-pull and operate in "class C" (2) The capacitance values quoted are across the whole plate coils Center linked coils of the B&W JVL vari
/archives//html/Amps/2005-09/msg00054.html (9,501 bytes)

76. Re: [Amps] Alpha releases New Amp 9500 (score: 1)
Author: Karl-Arne Markstr&ouml;m <sm0aom@telia.com>
Date: Sat, 17 Sep 2005 08:44:37 +0200
Hm... If the RS-232 standard has been around more than 50 years, it then would predate transistorised logic circuits. The most common computer serial communications standard well into the 60's was th
/archives//html/Amps/2005-09/msg00164.html (13,616 bytes)

77. Re: [Amps] grid dipper (score: 1)
Author: Karl-Arne Markstr&ouml;m <sm0aom@telia.com>
Date: Sat, 24 Sep 2005 22:19:20 +0200
The tube in the B&W 600 GDO is the 955 acorn triode, and the whole manual can be downloaded from http://bama.edebris.com/manuals/b&w/gdo600/ 73/ Karl-Arne SM0AOM -- Original Message -- From: "carl se
/archives//html/Amps/2005-09/msg00318.html (7,955 bytes)

78. [Amps] TMC PAL-350 or PAL-500 interconnecting cable? (score: 1)
Author: Karl-Arne Markstr&ouml;m <sm0aom@telia.com>
Date: Thu, 29 Sep 2005 18:22:37 +0200
This is directed to the "TMC users" category of the list. I am looking for a source for the interconnecting cable between the PS and PA unit used in the TMC PAL-350 or PAL-500 HF amplifiers. This cab
/archives//html/Amps/2005-09/msg00372.html (7,084 bytes)

79. Re: [Amps] help needed sorting out a tube rectifier circuit (score: 1)
Author: Karl-Arne Markstr&ouml;m <sm0aom@telia.com>
Date: Tue, 4 Oct 2005 19:11:11 +0200
What you have here is the classic "economy power supply", which is a combination of the full wave Graetz bridge circuit, and the center-tap full-wave rectifier. If you look closely in the power suppl
/archives//html/Amps/2005-10/msg00116.html (10,134 bytes)

80. Re: [Amps] amateur code (score: 1)
Author: Karl-Arne Markstr&ouml;m <sm0aom@telia.com>
Date: Mon, 10 Oct 2005 07:45:08 +0200
The Archduke must have been the late OE3AH, Dr. Anton Habsburg [1900 - 1987] (for QSL picture see http://www.eht.com/oldradio/awa/cartoons/old_qsl1.jpg) Note that the contact on the QSL is dated 2342
/archives//html/Amps/2005-10/msg00236.html (9,566 bytes)


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