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Total 3 documents matching your query.

1. [AMPS] Filament protection. (score: 1): Author: g3jvc@jcleeve.idps.co.uk (Cleeve); Date: Fri, 22 Jun 2001 01:02:21 +0100; I have been reading the comments on filament voltage with interest. Would it be considered good practice to put a small variac in the primary circuit of the filament transformer, supplying a transmit; /archives//html/Amps/2001-06/msg00243.html (6,947 bytes)
2. Fwd: [AMPS] Filament protection. (score: 1): Author: w6frmarv@dslextreme.com (Marv Gonsior); Date: Thu, 21 Jun 2001 18:28:20 -0700; It sure would do the job, John, but an automatic means to accomplish the same thing would be the use of a Keystone Carbon Co.'s NTC (negative temperature coefficient) thermister. It will slow ramp u; /archives//html/Amps/2001-06/msg00244.html (7,262 bytes)
3. [AMPS] Filament protection. (score: 1): Author: 2@vc.net (2); Date: Fri, 22 Jun 2001 07:39:53 -0700; Eimac recommends using this procedure with its 8973 tetrode. The filament is 18.5v at 650a. cheers, John - R. L. Measures, 805.386.3734, www.vcnet.com/measures. end -- FAQ on WWW: http://www.contest; /archives//html/Amps/2001-06/msg00252.html (7,105 bytes)

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