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1. [Amps] Driving an 8877 (score: 1): Author: Gudguyham@aol.com; Date: Tue, 13 Jul 2010 07:12:57 -0400 (EDT); There are 2 typical ways to drive an 8877 tube along with bias. There is the method where the bias is fed through an RF choke to the cathode and the RF is fed though the block cap to the cathode. In; /archives//html/Amps/2010-07/msg00110.html (6,943 bytes)
2. Re: [Amps] Driving an 8877 (score: 1): Author: "Bill, W6WRT" <dezrat1242@yahoo.com>; Date: Tue, 13 Jul 2010 10:23:41 -0700; ORIGINAL MESSAGE: REPLY: As you say, either method can work. I prefer to connect the cathode directly to one side of the heater and feed the RF at that point. The main reason is to preclude a possibl; /archives//html/Amps/2010-07/msg00112.html (7,639 bytes)

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