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Total 162 documents matching your query.

81. [Amps] Big Iron and Coax (score: 1)
Author: "Paul Kraemer" <elespe@lisco.com>
Date: Tue, 18 Jan 2011 12:11:49 -0600
Friends A life long time friend in Nebraska asked me to help find new homes for these items or at least an appropriate value so he can be more effective marketing them Dave is a "stand up" guy and I
/archives//html/Amps/2011-01/msg00179.html (7,205 bytes)

82. Re: [Amps] Filament transformer for SB-220 needed (score: 1)
Author: "Paul Kraemer" <elespe@lisco.com>
Date: Tue, 1 Mar 2011 11:34:56 -0600
Does that affect the bias? Paul K0UYA -- Original Message -- From: "Commander John" <crazytvjohn@yahoo.com> To: <amps@contesting.com> Sent: Tuesday, March 01, 2011 9:32 AM Subject: Re: [Amps] Filamen
/archives//html/Amps/2011-03/msg00012.html (9,077 bytes)

83. Re: [Amps] Adhesive for Teflon sheet.. (score: 1)
Author: "Paul Kraemer" <elespe@lisco.com>
Date: Wed, 23 Mar 2011 11:26:50 -0500
Or just go to Home Depot and get a roll of double stick carpet tape I've used it to stick together nylon plates used for assembly spacers Once stuck it is STUCK. Adds about 0.006" per layer. Paul K0U
/archives//html/Amps/2011-03/msg00176.html (10,502 bytes)

84. Re: [Amps] SB-200 power supply diodes (score: 1)
Author: "Paul Kraemer" <elespe@lisco.com>
Date: Sun, 27 Mar 2011 10:50:46 -0500
Excellent point Gerald I also wonder if any one has done the math or actually measured the increase in diode / transformer current from arbitrarily increasing the original filter cap size from the or
/archives//html/Amps/2011-03/msg00216.html (9,306 bytes)

85. Re: [Amps] Transformer i.d. (score: 1)
Author: "Paul Kraemer" <elespe@lisco.com>
Date: Tue, 5 Apr 2011 21:36:57 -0500
Glen Were me, I'd just apply very low voltage from the variac to two of the primary connections and measure away Paul K0UYA -- Original Message -- From: "Glen Zook" <gzook@yahoo.com> To: <amps@contes
/archives//html/Amps/2011-04/msg00195.html (9,576 bytes)

86. Re: [Amps] Transformer i.d. (score: 1)
Author: "Paul Kraemer" <elespe@lisco.com>
Date: Tue, 5 Apr 2011 21:49:17 -0500
Works for me Paul K0UYA -- Original Message -- From: "Glen Zook" <gzook@yahoo.com> To: <amps@contesting.com>; "Paul Kraemer" <elespe@lisco.com> Sent: Tuesday, April 05, 2011 9:44 PM Subject: Re: [Amp
/archives//html/Amps/2011-04/msg00198.html (10,902 bytes)

87. Re: [Amps] big old plate transformer (score: 1)
Author: "Paul Kraemer" <elespe@lisco.com>
Date: Fri, 15 Apr 2011 14:12:57 -0500
Generally speaking it isn't recommended because it puts the ct at half dc voltage and the transformer may have been designed for ct to be grounded. That caution issued I'm sure many of us have done i
/archives//html/Amps/2011-04/msg00446.html (8,127 bytes)

88. Re: [Amps] 4-1000A color (score: 1)
Author: "Paul Kraemer" <elespe@lisco.com>
Date: Fri, 27 May 2011 17:43:02 -0500
One of my earliest acquaintances with an old tyme contester and dxpeditioner (now SK) ran a 4-1000 at 6 kv and 1adc key down. With 5 elements at 150 ft he could demonstrate the ability to pretty much
/archives//html/Amps/2011-05/msg00254.html (8,396 bytes)

89. Re: [Amps] Using an oil capacitor (score: 1)
Author: "Paul Kraemer" <elespe@lisco.com>
Date: Sun, 19 Jun 2011 12:10:40 -0500
Vic BE CAREFUL. BE VERY CAREFUL!!! capacitor" which is not suitable for power supply filter at even it's published ratings. You will be picking pieces of capacitor out of places you really don't want
/archives//html/Amps/2011-06/msg00239.html (9,505 bytes)

90. Re: [Amps] Using an oil capacitor (score: 1)
Author: "Paul Kraemer" <elespe@lisco.com>
Date: Sun, 19 Jun 2011 15:40:29 -0500
The physical size suggests that it is one of the pulse rated energy storage types I have one same value almost exact same size made by Spraque and it is labled for Photo Flash I bought mine cheap whe
/archives//html/Amps/2011-06/msg00252.html (13,717 bytes)

91. [Amps] has anyone (score: 1)
Author: "Paul Kraemer" <elespe@lisco.com>
Date: Thu, 30 Jun 2011 17:37:55 -0500
Just an idle mind question for a sultry day before the holiday: Has anyone ever attempted using a ACVFD ahead of a 3 phase transformer? You would have single phase power converted to three-phase and
/archives//html/Amps/2011-06/msg00338.html (6,553 bytes)

92. Re: [Amps] What is the meaning of ACVFD ? (score: 1)
Author: "Paul Kraemer" <elespe@lisco.com>
Date: Sat, 2 Jul 2011 14:17:30 -0500
AC Variable Frequency Drive An electronic motor control that rectifies incoming line voltage (single or 3 phase) to provide a dc buss voltage (approximately 350vdc for a 230vac drive) which is suppli
/archives//html/Amps/2011-07/msg00003.html (7,716 bytes)

93. Re: [Amps] Anbody still repair meters? (score: 1)
Author: "Paul Kraemer" <elespe@lisco.com>
Date: Wed, 14 Sep 2011 08:48:51 -0500
Eldad Benary at the sound company in New York Google can find him He is very capable and very reasonable. Fast turn around too. Highly recommend him Paul K0UYA -- Original Message -- From: "Carl" <km
/archives//html/Amps/2011-09/msg00087.html (8,171 bytes)

94. [Amps] 811A (score: 1)
Author: "Paul Kraemer" <elespe@lisco.com>
Date: Sat, 17 Sep 2011 16:51:33 -0500
Hello all I realize this has probably been covered before but-- Someone asked me if Taylor 811-A were Chinese or Russian? Does it matter? They have the Taylor name Or, is there a hands down better ch
/archives//html/Amps/2011-09/msg00118.html (6,319 bytes)

95. Re: [Amps] Anodised aluminum (score: 1)
Author: "Paul Kraemer" <elespe@lisco.com>
Date: Thu, 20 Oct 2011 09:47:18 -0500
A small end mill or appropriate Dremel bit makes a nice clean round spot for the hardware to land Paul K0UYA -- Original Message -- From: "alexeban" <alexeban@gmail.com> To: "'Robert Briggs'" <vk3zl@
/archives//html/Amps/2011-10/msg00063.html (9,396 bytes)

96. [Amps] K7RLD amp (score: 1)
Author: "Paul Kraemer" <elespe@lisco.com>
Date: Wed, 25 Jan 2012 16:00:59 -0600
Anyone familiar with the K7RLD amp using two 4CX250 in cathode drive with the grid connected to cathode through a 100 ohm resistor? Any idea how much drive is required for full output? Paul K0UYA ___
/archives//html/Amps/2012-01/msg00187.html (6,492 bytes)

97. Re: [Amps] tetrode reverse screen grid current (score: 1)
Author: "Paul Kraemer" <elespe@lisco.com>
Date: Sun, 29 Jan 2012 11:36:56 -0600
There is another solution? Electronically regulated supply? Paul K0UYA -- Original Message -- From: "John Lyles" <jtml@losalamos.com> To: <amps@contesting.com> Sent: Sunday, January 29, 2012 12:28 AM
/archives//html/Amps/2012-01/msg00263.html (11,242 bytes)

98. Re: [Amps] Wanted Danger Sticker (score: 1)
Author: "Paul Kraemer" <elespe@lisco.com>
Date: Sun, 29 Jan 2012 20:53:39 -0600
Or laminate it with the cold process sheet from office supply store. Paul K0UYA -- Original Message -- From: "Glen Zook" <gzook@yahoo.com> To: <wb6rse1@mac.com>; "Amps List" <Amps@contesting.com> Sen
/archives//html/Amps/2012-01/msg00282.html (8,582 bytes)

99. [Amps] Alpha (score: 1)
Author: "Paul Kraemer" <elespe@lisco.com>
Date: Thu, 23 Feb 2012 17:01:18 -0600
What in your expert opinion(s) would be a reasonable price to offer for an Alpha 89 in clean cosmetic but unknown electrical not gauranteed condition. I assume the tubes are in it but don't even know
/archives//html/Amps/2012-02/msg00249.html (6,315 bytes)

100. Re: [Amps] Schematics (score: 1)
Author: "Paul Kraemer" <elespe@lisco.com>
Date: Wed, 29 Feb 2012 20:08:21 -0600
Pretty neat Al Thanks for sharing! Paul K0UYA -- Original Message -- From: "Al Kozakiewicz" <akozak@hourglass.com> To: <amps@contesting.com> Sent: Wednesday, February 29, 2012 2:34 PM Subject: [Amps]
/archives//html/Amps/2012-02/msg00345.html (7,779 bytes)

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