RE: Cathode Follower Output

Posted by Triode_Kingdom (A) on September 12, 2014 at 13:34:39

In Reply to: RE: Cathode Follower Output posted by Eli Duttman on September 12, 2014 at 12:35:09:

That's good to hear. My goal in pursuing this is to make use of more unusual triodes like the 829B that normally wouldn't perform well in SE, or that would be cumbersome to use for one reason or another. Using them as followers resolves linearity issues, but driving them to their usual output power would require an extremely high voltage swing on the grid. So, I'm thinking about using them at the 0.5-1W level, strictly as headphone amps. Even at that, the required swing with a 5K OPT is pretty large, but it should be manageable with a 6SN7 driver and +400 driver supply. To spice up the cosmetics, I'm also thinking about attaching nice finned anode radiators, and I want to simply ground the anodes to the chassis directly behind the tubes in order to avoid the usual shock hazard. The output tubes (and maybe the drivers) would be powered with a negative supply at the cathodes, rather than the typical B+ supply. There are other tubes with unusual shapes and styles that would also look good in this sort of arrangement. I'm concerned as to why no one has done this before (?), so I'm hoping to get a better handle on all the pros and cons before I start the actual work. Thanks for your input!

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Follow Ups Full Thread

Topic - Cathode Follower Output - Triode_Kingdom 10:50:12 09/12/14 (23)

RE: Cathode Follower Output - Stuben 12:12:49 09/18/14 (5)

RE: Cathode Follower Output - Al Noakes 06:10:21 09/19/14 (4)

RE: Cathode Follower Output - amnesiac 00:13:49 09/22/14 (0)

RE: Cathode Follower Output - Stuben 13:06:21 09/21/14 (2)

RE: Cathode Follower Output - Stuben 12:12:20 09/22/14 (0)

RE: Cathode Follower Output - Stuben 13:09:52 09/21/14 (0)

RE: Cathode Follower Output - Al Noakes 02:57:54 09/13/14 (5)

RE: Cathode Follower Output - Triode_Kingdom 10:38:04 09/13/14 (4)

RE: Cathode Follower Output - Al Noakes 05:07:03 09/15/14 (3)

RE: Cathode Follower Output - Triode_Kingdom 09:16:51 09/15/14 (2)

RE: Cathode Follower Output - Al Noakes 10:54:49 09/15/14 (1)

Got it - thanks! - Triode_Kingdom 13:13:22 09/15/14 (0)

RE: Cathode Follower Output - Kyle K 14:13:16 09/12/14 (0)

RE: Cathode Follower Output - danlaudionut 13:03:00 09/12/14 (5)

RE: Cathode Follower Output - Triode_Kingdom 13:14:06 09/12/14 (4)

RE: Cathode Follower Output - danlaudionut 14:05:28 09/12/14 (3)

RE: Cathode Follower Output - Triode_Kingdom 15:43:36 09/12/14 (2)

RE: Cathode Follower Output - danlaudionut 22:41:09 09/12/14 (1)

RE: Cathode Follower Output - Triode_Kingdom 11:25:32 09/13/14 (0)

RE: Cathode Follower Output - Eli Duttman 12:35:09 09/12/14 (3)

RE: Cathode Follower Output - Triode_Kingdom 13:34:39 09/12/14 (2)

RE: Cathode Follower Output - Eli Duttman 14:40:41 09/12/14 (1)

RE: Cathode Follower Output - Triode_Kingdom 15:25:57 09/12/14 (0)

Follow Ups

RE: Cathode Follower Output - Triode_Kingdom 13:34:39 09/12/14 (2)

RE: Cathode Follower Output - Eli Duttman 14:40:41 09/12/14 (1)

RE: Cathode Follower Output - Triode_Kingdom 15:25:57 09/12/14 (0)

RE: Cathode Follower Output

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