RE: Best sounding power pentode/tetrode in triode for SE?

Posted by Boli46 (A) on October 6, 2020 at 01:52:39

In Reply to: Best sounding power pentode/tetrode in triode for SE? posted by andy evans on October 3, 2020 at 02:14:02:

The Siemens F2a connected in triode is a very good tube. It's not cheap, but it's a 10 000 hour tube, unusual for an output tube to say the least, and will last a very long time. It's also easy to drive. If you look at the datasheets, don't be fooled by the high distorsion figures. For some reason, distorsion was measured with a 1,5 KOhm load.

The 6CB5A has been mentioned. I use it in a push pull amp to great effect, but so far not in SE. It has the advantage of being very cheap. Last time I bought some they were only USD5/ea. This tube is Thomas Mayers favourite IDHT output. Lot's of info on his Vinylsavor blog.

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Follow Ups Full Thread

Topic - Best sounding power pentode/tetrode in triode for SE? - andy evans 02:14:02 10/03/20 (17)

RE: Best sounding power pentode/tetrode in triode for SE? - Cleantimestream 10:11:25 10/27/20 (0)

How about PT 15 valve - bouncy ball 09:16:49 10/06/20 (3)

RE: How about PT 15 valve - andy evans 07:44:09 10/07/20 (2)

sorry, i don't have that informaion(nt) - bouncy ball 06:30:17 10/08/20 (1)

RE: sorry, i don't have that informaion(nt) - kobasa@xs4all.nl 11:49:14 10/10/20 (0)

RE: 6CB5A - good power in triode mode - deathtube 667 03:09:40 10/06/20 (1)

RE: 6CB5A - good power in triode mode - PakProtector 08:50:07 10/06/20 (0)

RE: Best sounding power pentode/tetrode in triode for SE? - Boli46 01:52:39 10/06/20 (0)

RE: Best sounding power pentode/tetrode in triode for SE? - PakProtector 06:21:08 10/04/20 (0)

RE: Best sounding power pentode/tetrode in triode for SE? - dhsettim 16:47:38 10/03/20 (4)

RE: Best sounding power pentode/tetrode in triode for SE? - hahax@verizon.net 20:19:37 10/04/20 (0)

RE: Best sounding power pentode/tetrode in triode for SE? - Tre' 10:56:58 10/04/20 (2)

There's a reason for that.., - Steve O 20:58:41 10/04/20 (1)

Thanks nt - Tre' 11:10:27 10/05/20 (0)

RE: Best sounding power pentode/tetrode in triode for SE? - FlaCharlie 08:22:16 10/03/20 (0)

RE: Best sounding power pentode/tetrode in triode for SE? - Eli Duttman 04:32:26 10/03/20 (1)

Is GU50 a contender? - andy evans 06:45:25 10/03/20 (0)

Follow Ups

RE: Best sounding power pentode/tetrode in triode for SE? - Boli46 01:52:39 10/06/20 (0)

RE: Best sounding power pentode/tetrode in triode for SE?

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