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41. [AMPS] 240VAC Amplifier Wiring (score: 1): Author: paulc@mediaone.net (Paul Christensen); Date: Tue, 14 Nov 2000 12:30:29 -0500; Correction. I meant to say: "the amplifier's 120VAC blower has no 240VAC tap. Thus, a neutral is still required." -Paul, W9AC -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@cont; /archives//html/Amps/2000-11/msg00140.html (8,880 bytes)
42. [AMPS] 240VAC Amplifier Wiring (score: 1): Author: paulc@mediaone.net (Paul Christensen); Date: Tue, 14 Nov 2000 21:43:56 -0500; Thanks to those of you who helped me discover the "3-pole, 4-wire" 240 VAC outlet. This is exactly what I was looking for and it is intended for those applications where a separate ground and neutral; /archives//html/Amps/2000-11/msg00147.html (14,311 bytes)
43. [AMPS] 240VAC Amplifier Wiring (score: 1): Author: paulc@mediaone.net (Paul Christensen); Date: Wed, 15 Nov 2000 08:48:53 -0500; Rich, I agree with this statement so long as the cabinet gets to the load center neutral only through a separate ground wire, not a current-carrying neutral attached to the cabinet. The potential pr; /archives//html/Amps/2000-11/msg00157.html (9,552 bytes)
44. [AMPS] 240VAC Amplifier Wiring (score: 1): Author: paulc@mediaone.net (Paul Christensen); Date: Wed, 15 Nov 2000 08:54:25 -0500; 120volt in the Pete, I'm with you 100% here. I would add that the neutral for any 120VAC demands within the amp stay isolated from the grounded chassis and that the ONLY point where neutral and grou; /archives//html/Amps/2000-11/msg00158.html (9,423 bytes)
45. [AMPS] 240VAC Amplifier Wiring (score: 1): Author: paulc@mediaone.net (Paul Christensen); Date: Wed, 15 Nov 2000 13:29:10 -0500; Eric, Keep me honest, but what I believe you're saying is that 10/3 Romex as sold without ground (and even 10/2 w/ ground) should never be used in neutral-wiring applications unless a separate groun; /archives//html/Amps/2000-11/msg00168.html (9,507 bytes)
46. [AMPS] 240VAC Amplifier Wiring (score: 1): Author: paulc@mediaone.net (Paul Christensen); Date: Wed, 15 Nov 2000 15:54:58 -0500; Rich, wouldn't this only be applicable during the initial inrush of current at power-up and that a step-start circuit should limit the inrush of current "somewhere close" to that of a resistive load; /archives//html/Amps/2000-11/msg00171.html (8,478 bytes)
47. [AMPS] AL-1200 (score: 1): Author: paulc@mediaone.net (Paul Christensen); Date: Fri, 1 Sep 2000 10:41:35 -0400; And I still think the mid-'70s ETO/Alpha ad was a flash of genius on the part of Dick Ehrhorn: Anyone recall the ads in QST where a brick was placed on a key, a human skeleton sat in a chair with spi; /archives//html/Amps/2000-09/msg00014.html (9,053 bytes)
48. [AMPS] AL-1200 (score: 1): Author: paulc@mediaone.net (Paul Christensen); Date: Fri, 1 Sep 2000 13:27:51 -0400; I believe ETO incorporated the vacuum relay accelerator circuit at the introduction of their Alpha 77 (not Dx/Sx) in 1973 or thereabout. The circuit uses a series of diodes and electrolytic capacito; /archives//html/Amps/2000-09/msg00030.html (8,517 bytes)
49. [AMPS] Blown TL922A... What to do? (score: 1): Author: paulc@mediaone.net (Paul Christensen); Date: Wed, 6 Sep 2000 16:45:11 -0400; But then why does nearly every current-day HF amplifier manufacturer use "1935 technology" with the inclusion of the classic coil turned around a carbon composition resistor for the purpose of servi; /archives//html/Amps/2000-09/msg00157.html (10,138 bytes)
50. [AMPS] Blown TL922A... What to do? (score: 1): Author: paulc@mediaone.net (Paul Christensen); Date: Wed, 6 Sep 2000 20:14:01 -0400; Could it be that "self-oscillation" at or near the operating frequency and VHF oscillation (parasitics) are rooted in the same mechanical design and layout limitations, and depending on the accuracy; /archives//html/Amps/2000-09/msg00168.html (10,331 bytes)
51. [AMPS] TL-922 (score: 1): Author: paulc@mediaone.net (Paul Christensen); Date: Thu, 7 Sep 2000 09:31:45 -0400; Can we compare the bill-of-materials and costs between the two alternative methods? I suspect that if end result is the reasonably the same, the method that costs the least and involves the least am; /archives//html/Amps/2000-09/msg00207.html (7,968 bytes)
52. [AMPS] Blown TL922A... What to do? (score: 1): Author: paulc@mediaone.net (Paul Christensen); Date: Thu, 7 Sep 2000 13:45:24 -0400; I believe Rich's cure can be easily invoked by anyone wanting to build a nichrome wire-based VHF suppressor without having to send a dime to him...unless Rich holds all rights to the world's supply; /archives//html/Amps/2000-09/msg00226.html (9,604 bytes)
53. [AMPS] Blown TL922A... What to do? (score: 1): Author: paulc@mediaone.net (Paul Christensen); Date: Thu, 7 Sep 2000 14:07:46 -0400; be Despite all the mud-slinging, these discussions always made me re-think common notions concerning amplifier design and I oftentimes carry away something of value that I can research on my own or; /archives//html/Amps/2000-09/msg00228.html (10,326 bytes)
54. [AMPS] Logic v. Magic (score: 1): Author: paulc@mediaone.net (Paul Christensen); Date: Fri, 8 Sep 2000 15:32:26 -0400; This is a multi-part message in MIME format. --=_NextPart_000_011C_01C019A9.FE160FC0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable So then what was the ro; /archives//html/Amps/2000-09/msg00306.html (15,803 bytes)
55. [AMPS] Blown TL922A... What to do? (score: 1): Author: paulc@mediaone.net (Paul Christensen); Date: Fri, 8 Sep 2000 16:17:17 -0400; And still stay within the cost and complexity constraints of a simple coil/resistor suppressor? -Paul, W9AC -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Adminis; /archives//html/Amps/2000-09/msg00307.html (9,211 bytes)
56. [AMPS] Alpha Going T/U (score: 1): Author: paulc@mediaone.net (Paul Christensen); Date: Sat, 9 Sep 2000 13:11:18 -0400; This is a multi-part message in MIME format. --=_NextPart_000_005E_01C01A5F.71076820 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Upon hearing the news; /archives//html/Amps/2000-09/msg00369.html (9,158 bytes)
57. [AMPS] Blown TL922A... What to do? (score: 1): Author: paulc@mediaone.net (Paul Christensen); Date: Mon, 11 Sep 2000 10:59:42 -0400; Question: How relevant is the percentage delta when the Q is ~ 2.0? In other words, is this percentage change at ~ 2.0 as important as a say a 46% change in Q from 50 to 73? -Paul, W9AC -- FAQ on WW; /archives//html/Amps/2000-09/msg00461.html (9,381 bytes)
58. [AMPS] Blown TL922A... What to do? (score: 1): Author: paulc@mediaone.net (Paul Christensen); Date: Mon, 11 Sep 2000 11:03:08 -0400; 10K placed exactly where in the circuit? -Paul, W9AC -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesting.com Problems:; /archives//html/Amps/2000-09/msg00462.html (9,251 bytes)
59. [AMPS] Kaput 8877s from AL-1500 arrive (score: 1): Author: paulc@mediaone.net (Paul Christensen); Date: Wed, 13 Sep 2000 09:41:21 -0400; Rich, Can you tell us more about your plan for inspecting these tubes including any methods, procedures, and validation of results? Thanks. -Paul, W9AC -- FAQ on WWW: http://www.contesting.com/FAQ/am; /archives//html/Amps/2000-09/msg00597.html (7,871 bytes)
60. [AMPS] Blown TL922A... What to do? (score: 1): Author: paulc@mediaone.net (Paul Christensen); Date: Wed, 13 Sep 2000 12:00:09 -0400; The bizarre set of circumstances that occurred to Rich as a result of the now infamous "Technical Correspondence" rebuttal (see reference below in Phil's reply), would have never occurred had the art; /archives//html/Amps/2000-09/msg00611.html (12,564 bytes)

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