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Total 80 documents matching your query.

61. [AMPS] SB-220: Operate/Standby Switch (score: 1): Author: 2@vc.net (measures); Date: Tue, 6 Feb 2001 08:05:27 -0800; According to Mr. Rauch, 8877s can not oscillate. He has never explained why. see Figure 24 on my Web site. cheers, Peter - Rich..., 805.386.3734, www.vcnet.com/measures. end -- FAQ on WWW: http://ww; /archives//html/Amps/2001-02/msg00146.html (10,006 bytes)
62. [AMPS] SB-220: Operate/Standby Switch (score: 1): Author: 2@vc.net (measures); Date: Tue, 6 Feb 2001 08:05:28 -0800; Spam -- that which questions pontifications. [chortle] The DTR2000 runs 5.9v on the 8877 heater. The max fil. V is 5.25. I know folks who have wider fluctuations. ..... NIH syndrome. gold-sputtering; /archives//html/Amps/2001-02/msg00147.html (12,437 bytes)
63. [AMPS] SB-220: Operate/Standby Switch (score: 1): Author: 2@vc.net (measures); Date: Tue, 6 Feb 2001 08:18:53 -0800; only works with thoriated tungsten. - Rich..., 805.386.3734, www.vcnet.com/measures. end -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Administrative requests: a; /archives//html/Amps/2001-02/msg00148.html (9,386 bytes)
64. [AMPS] SB-220: Operate/Standby Switch (score: 1): Author: 2@vc.net (measures); Date: Tue, 6 Feb 2001 08:18:54 -0800; Spam filters can not stop other people from replying to the those who don't buy everything Tom says. . ...... - Rich..., 805.386.3734, www.vcnet.com/measures. end -- FAQ on WWW: http://www.contestin; /archives//html/Amps/2001-02/msg00149.html (9,154 bytes)
65. [AMPS] SB-220: Operate/Standby Switch (score: 1): Author: baycock@HIWAAY.NET (Bill Aycock); Date: Tue, 06 Feb 2001 10:31:26 -0600; Tom did NOT say that, and fig 24 says nothing about oscillation., merely overheating. Been there saw that, read that, <chortle> <guffaw> <snicker> Bill-W4BSG - Bill Aycock -- Persimmon Hill Woodville; /archives//html/Amps/2001-02/msg00150.html (9,675 bytes)
66. [AMPS] SB-220: Operate/Standby Switch (score: 1): Author: 2@vc.net (measures); Date: Tue, 6 Feb 2001 08:48:58 -0800; Tom said that 8877s can not oscillate - which is why he uses no vhf suppressor on the AL-1500. The Eimac letter explains that gold sputtering is the result of oscillation. apparently not. <chortle>; /archives//html/Amps/2001-02/msg00152.html (10,301 bytes)
67. [AMPS] SB-220: Operate/Standby Switch (score: 1): Author: RMcGraw@InfoAve.Net (Bob & Linda McGraw K4TAX); Date: Tue, 06 Feb 2001 10:29:39 -0800; In general: Once upon a time in my life, professionally, it was my job as part of a team to review engineering models & prototypes for the ability to be manufactured and used reliably by the end user; /archives//html/Amps/2001-02/msg00154.html (12,518 bytes)
68. [AMPS] SB-220: Operate/Standby Switch (score: 1): Author: RMcGraw@InfoAve.Net (Bob & Linda McGraw K4TAX); Date: Tue, 06 Feb 2001 10:37:14 -0800; I agree with Tom on this. Bigger is not better in the case of filament transformer ratings. If the tube requires 10V at 10A then a transformer rated at 10V at 10A CCS, properly cooled, is acceptable.; /archives//html/Amps/2001-02/msg00155.html (11,273 bytes)
69. [AMPS] SB-220: Operate/Standby Switch (score: 1): Author: RMcGraw@InfoAve.Net (Bob & Linda McGraw K4TAX); Date: Tue, 06 Feb 2001 10:55:32 -0800; Paul and company: Are we overlooking the fact that as a tube approaches it max useable freq., that the back bombardment of the cathode from electrons knocked loose from the anode does raise the catho; /archives//html/Amps/2001-02/msg00156.html (18,942 bytes)
70. [AMPS] SB-220: Operate/Standby Switch (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Tue, 6 Feb 2001 20:27:52 -0500; Put all those tubes laying around that are perfectly good except for low emission in one pile. Put all the tubes with internal defects like broken welds, leaking seals, open filaments, grids touchin; /archives//html/Amps/2001-02/msg00165.html (10,199 bytes)
71. [AMPS] SB-220: Operate/Standby Switch (score: 1): Author: 2@vc.net (measures); Date: Wed, 7 Feb 2001 00:50:38 -0800; gold-sputtering reduces emission. When is Mr. Rauch going to tell us why the 8877 needs no VHF suppressor. Why did Henry Radio, Dentron and Alpha use a VHF suppressor in their 8877 amplifiers. ? - R; /archives//html/Amps/2001-02/msg00173.html (10,239 bytes)
72. [AMPS] SB-220: Operate/Standby Switch (score: 1): Author: da_kang@hotmail.com (Jeff Wolf); Date: Thu, 08 Feb 2001 19:34:37; Maybe in the Euro world, but here in the states, it doesn't. I work for the 2nd largest HVAC manufacturer in the world (nice, since high speed, high volume blowers are easy for me to procure :) ), a; /archives//html/Amps/2001-02/msg00194.html (10,345 bytes)
73. [AMPS] SB-220: Operate/Standby Switch (score: 1): Author: Peter_Chadwick@mitel.com (Peter Chadwick); Date: Fri, 9 Feb 2001 08:07:29 -0000; It all depends on how creative your accounting is at hiding real costs. A $6 rheostat has to be ordered by purchasing. It has to be unpacked and placed in stores. It has to be issued to the line and; /archives//html/Amps/2001-02/msg00196.html (9,672 bytes)
74. [AMPS] SB-220: Operate/Standby Switch (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Fri, 9 Feb 2001 11:21:48 -0500; Then you have to add in cost of additional failures and problems caused by adding that rheostat, compared to what it might possibly help. And don't forget the internal metering (since you could NEVER; /archives//html/Amps/2001-02/msg00197.html (9,360 bytes)
75. [AMPS] SB-220: Operate/Standby Switch (score: 1): Author: philk5pc@tyler.net (Phil Clements); Date: Fri, 9 Feb 2001 11:42:29 -0600; Modern amps now on the market are now not as much of a problem. Multi-tapped transformers and step-start circuits are incorporated in most designs. It is the old pre-1980 amps that need the attentio; /archives//html/Amps/2001-02/msg00198.html (9,047 bytes)
76. SV: [AMPS] SB-220: Operate/Standby Switch (score: 1): Author: sm3jla@algonet.se (Mikael Westerlund); Date: Fri, 9 Feb 2001 20:49:23 +1030; It can´t be that hard to calibrat whatever cheep meter you would like to use against an accurate one. Printing a new scale or just do some mark with a pencil. It need to be accurate within a ve; /archives//html/Amps/2001-02/msg00199.html (10,408 bytes)
77. [AMPS] SB-220: Operate/Standby Switch (score: 1): Author: 2@vc.net (measures); Date: Fri, 9 Feb 2001 12:12:09 -0800; Modern DMMs are fairly accurate. Can anyone name the Henry Radio 3-500z amplifier that runs 6v on the filaments?. - Rich..., 805.386.3734, www.vcnet.com/measures. end -- FAQ on WWW: http://www.conte; /archives//html/Amps/2001-02/msg00200.html (8,935 bytes)
78. [AMPS] SB-220: Operate/Standby Switch (score: 1): Author: kc4slk@csrlink.net (Mike Sawyer); Date: Fri, 9 Feb 2001 16:27:09 -0500; <snip> All this worry, planning, and expense to correct a non-problem is silly. It isn't silly if you have a lot of money invested in a tube, (such as an 8877 et al), and your power line is prone to; /archives//html/Amps/2001-02/msg00202.html (8,493 bytes)
79. [AMPS] SB-220: Operate/Standby Switch (score: 1): Author: RMcGraw@InfoAve.Net (Bob & Linda McGraw K4TAX); Date: Fri, 09 Feb 2001 17:13:06 -0800; That's why I have a 5.0V secondary constant voltage transformer in my 8877 amp for the heaters. No meter needed. 73 Bob K4TAX -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@conte; /archives//html/Amps/2001-02/msg00203.html (8,979 bytes)
80. [AMPS] SB-220: Operate/Standby Switch (score: 1): Author: 2@vc.net (measures); Date: Sat, 10 Feb 2001 04:10:07 -0800; you wouldn't. Ours dropped to c. 100v for 3 days. This is not ok for heater-type tubes - Rich..., 805.386.3734, www.vcnet.com/measures. end -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissi; /archives//html/Amps/2001-02/msg00214.html (8,319 bytes)

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