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1. [Amps] 8877 - Which Bias voltage ? (score: 1): Author: morriso@rcn.com (Charlie Morrison - N1RR); Date: Fri, 15 Nov 2002 09:41:49 -0500; I am about to activate an RFPP-1000 amp which uses 1 - 8877 @ 2750v. (exactly what '5PRO recently described.) My last remaining conversion change is to chose the Cathode bias voltage to use. Here's w; /archives//html/Amps/2002-11/msg00251.html (7,316 bytes)
2. [Amps] 8877 - Which Bias voltage ? (score: 1): Author: philk5pc@tyler.net (Phil Clements); Date: Fri, 15 Nov 2002 15:26:24 -0600; I have converted several of these. If you remove the choke, add 30 mfd or so filter capacitor, and step-start, you will be able to set the taps on the HV transformer to 4 kv under load. You will the; /archives//html/Amps/2002-11/msg00262.html (8,694 bytes)

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