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References: [ +from:royanjoy@ncn.net: 309 ]

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41. [AMPS] Re: Knock a 3-550-Z short loose... (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Fri, 31 Dec 1999 13:07:02 -0600; About, "I've got the source of much trouble here in my hand... a 3-500z with a cathode to grid short. Anyone care to suggest a method to possibly open the short. I won't trust the tube in an amplifie; /archives//html/Amps/1999-12/msg00434.html (7,256 bytes)
42. [AMPS] Re: Emamel wire size... (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Tue, 2 Nov 1999 13:41:36 -0600; "Does anyone know what the equivalent guage is to 1mm wire ? I am building a 4:1 transformer which calls for 1mm enamel wire, but the US suppliers use the "guage std".. My guess is somewhere around 1; /archives//html/Amps/1999-11/msg00082.html (6,885 bytes)
43. [AMPS] Re: Elementary question...(Shame) (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Tue, 2 Nov 1999 14:18:42 -0600; Phil, thanks for the following: "A roller coil gives the advantage of being able to tune the tank for maximum efficiency at any power setting and frees one from many hours of tapping a fixed coil in; /archives//html/Amps/1999-11/msg00083.html (8,481 bytes)
44. [AMPS] Re: Enameled wire size... (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Tue, 2 Nov 1999 15:11:47 -0600; Dave, about, "Roy, ckeck my math but . 1 mm = 1/254 inch = 0.0039370 inch 73's, Dave N4CLR No, I got that from a data chart. Common sense tells us that #39 is very FINE indeed--hair like size. Nothin; /archives//html/Amps/1999-11/msg00085.html (7,352 bytes)
45. [AMPS] Re: Elementary question...(Shame) (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Tue, 2 Nov 1999 15:19:14 -0600; Hans, you asked, "Again: Can I put a variable condenser in series with the inductor in a pi network to get a variable inductance? An old WRL GALAXY with a large number of parallellt sweep tubes used; /archives//html/Amps/1999-11/msg00086.html (7,834 bytes)
46. [AMPS] Re: Bayonet Lamp (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Thu, 18 Nov 1999 16:14:04 -0600; Concerning, "Does anyone know where I can obtain one of these? Tried several outlets in Canada, no luck. Radio Shack has the type, but not the current capacity. For my Collins 30S-1. Thanks." 73, Car; /archives//html/Amps/1999-11/msg00401.html (6,763 bytes)
47. [AMPS] Re: SB-200 PS Question (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Fri, 19 Nov 1999 11:00:11 -0600; "After about 3 minutes of use, the HV bleeder resistors start to smoke from overheating. If I shut the amp off and let it cool, it will do the same again after a brief period. HV looks good on the me; /archives//html/Amps/1999-11/msg00412.html (6,865 bytes)
48. [AMPS] Re: Filament Xfmr. (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Sun, 3 Oct 1999 11:39:29 -0500; About: "I am building an amp with four 3-500Z using low bands only (160 and 80m). I do have two filament transformers, 5V/80A w/o a center tap on the secondary coil. The other one contains four coils; /archives//html/Amps/1999-10/msg00062.html (8,312 bytes)
49. [AMPS] Re: Henry 2K-3 (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Mon, 4 Oct 1999 16:28:29 -0500; "Fair Radio has 32uf 4kv caps at a reasonable price. Can I use one of those and get away with it?" Yes, providing other parameters are similiar, such as ripple-current rating, etc. 73, Roy K6XK -- FA; /archives//html/Amps/1999-10/msg00142.html (6,620 bytes)
50. [AMPS] FYI...Titan II (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Sat, 16 Oct 1999 17:22:59 -0500; November QST page 17 says the Titan II is now available. 73, K6XK -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesti; /archives//html/Amps/1999-10/msg00520.html (6,603 bytes)
51. [AMPS] Re: FYI...Titan II (For Steve) (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Sun, 17 Oct 1999 13:41:30 -0500; "Hi Roy; Noticed w/interest ur posting abt Titan II. Don't have Nov QST yet so...what is diff 'tween Titan and Titan II? I am interested in that ant as a portable fer mini-dx-peditions to the carribe; /archives//html/Amps/1999-10/msg00527.html (7,305 bytes)
52. [AMPS] Re: QSK-1500... (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Mon, 25 Oct 1999 16:32:00 -0500; Joe, I have been a happy user of the QSK-1500 for 18 years. It's great and worth around $100 now. Contact me for specific questions if you like. 73, Roy K6XK Iowa royanjoy@ncn.net -- FAQ on WWW: http; /archives//html/Amps/1999-10/msg00629.html (6,674 bytes)
53. [AMPS] Elementary question (Shame) (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Sat, 30 Oct 1999 13:23:52 -0500; OK Men, I have hesitated to ax this before 'cause it's so basic that I should have been born with the info. Feeling extra humble today, so here goes. We spend time calculating and almost endless time; /archives//html/Amps/1999-10/msg00680.html (7,808 bytes)
54. [AMPS] Re: Amps Supply LK500ZA (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Fri, 10 Sep 1999 11:56:58 -0500; Re: "i have an amp supply lk500za with the following numbers on the air variables a25075bb and 80032bb can anyone tell me the values of these variables? reply direct if you want" to n5tml@texhoma.net; /archives//html/Amps/1999-09/msg00076.html (6,901 bytes)
55. [AMPS] Re: Power measurement, etc. (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Mon, 2 Aug 1999 17:05:12 -0500; This is a multi-part message in MIME format. --=_NextPart_000_0041_01BEDD09.2EC59F20 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I wonder about the Palo; /archives//html/Amps/1999-08/msg00044.html (7,822 bytes)
56. [AMPS] Re: Clipperton L Plate Choke (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Fri, 6 Aug 1999 16:16:30 -0500; "I meant to ask if anyone knows the INDUCTANCE value of the plate choke, not the resonance. As I said, I measured ca. 200 uH, but I am not sure if this is correct." The inductance value is so nominal; /archives//html/Amps/1999-08/msg00140.html (6,968 bytes)
57. [AMPS] Re: Need info on mica caps (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Sun, 4 Jul 1999 14:25:21 -0500; need to know the current ratings.<<<< Just as a ball park reference, in my hand is a 258 pF 8KV 7A @ 3mHz. It measures 3X3X2 1/4 inches. 73, Roy K6XK -- FAQ on WWW: http://www.contesting.com/ampfaq.; /archives//html/Amps/1999-07/msg00045.html (7,343 bytes)
58. [AMPS] Re: PS diode equalizing (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Mon, 5 Jul 1999 11:05:42 -0500; Concerning... "I use resistors across the diodes, with no capacitors. With 1kV diodes, I use two 500volt resistors in series, although that's probably 'belt and braces'. If I was using capacitors, th; /archives//html/Amps/1999-07/msg00058.html (8,356 bytes)
59. [AMPS] Re: In Search of Better TR Switch (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Mon, 5 Jul 1999 17:12:48 -0500; Phil, I'm wid you on that quest. However, I'm still using my QSK-1500, which I bought new 14 years ago, with no problemo. I did make a few of the recommended minor mods: replacing resistors which had; /archives//html/Amps/1999-07/msg00072.html (7,084 bytes)
60. [AMPS] Re: Power Output (score: 1): Author: royanjoy@ncn.net (Roy Koeppe); Date: Fri, 9 Jul 1999 15:30:10 -0500; ".91dB may only buy a few S-units, but that can make a huge difference..." 1 S-unit = 6dB Roy K6XK -- FAQ on WWW: http://www.contesting.com/ampfaq.html Submissions: amps@contesting.com Administrative; /archives//html/Amps/1999-07/msg00161.html (6,622 bytes)

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