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61. Re: [Amps] grounding grids (score: 1): Author: donroden@hiwaay.net; Date: Sun, 02 Aug 2009 21:47:37 -0500; But did anyone come up with the original article of using 4CX-250Bs in "semi" grounded grid ? I believe my amp used 100 ohm 2 watt on each grid to ground with the screens direct to ground. Don WA4NPL; /archives//html/Amps/2009-08/msg00039.html (7,610 bytes)
62. Re: [Amps] grounding grids (score: 1): Author: "Fuqua, Bill L" <wlfuqu00@uky.edu>; Date: Mon, 3 Aug 2009 05:22:47 -0400; If I recall correctly there was an article in QST in the 60's of an amplifier using a pair of 4x150A tubes with both grids grounded but the output power was limited by the drive. About 2 issues later; /archives//html/Amps/2009-08/msg00048.html (9,328 bytes)

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