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In Reply to: RE: JJ EL509S posted by Steve O on November 10, 2021 at 05:45:57:
But if you drive the screen of an EL509 it becomes a triode and the curves are triode curves. McIntosh uses it as a pentode. Both Melos and David Berning used screen drive and had over 200 watts from a push/pull pair in triode. The Berning amp was the Audionics BA150. It was listed at 150 watts but that was David being conservative and testing with 100 volts AC into the power supply. Plus Melos produced triode mono blocks with over 400 watts triode from four EL519 tubes but only advertised 400 watts.
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Follow Ups
- RE: JJ EL509S - hahax@verizon.net 20:50:32 11/10/21 (16)
- RE: JJ EL509S - Steve O 09:06:53 11/11/21 (15)
- RE: JJ EL509S - hahax@verizon.net 08:31:39 11/20/21 (2)
- That doesn't explain the "curves" very well... - Steve O 12:09:37 11/20/21 (1)
- RE: That doesn't explain the "curves" very well... - hahax@verizon.net 14:56:43 11/20/21 (0)
- And if G1 and G2 are both driven? nt - Ralph 09:20:43 11/11/21 (11)
- You call it - Steve O 12:43:03 11/11/21 (10)
- One vote for "Triode", one for "Modulator" but I like "Special Triode Connection" - Steve O 17:30:38 11/13/21 (7)
- Berning's published curves - garymuffley 21:00:55 11/13/21 (6)
- Any links to Berning's published curves?... - Steve O 05:18:06 11/15/21 (4)
- RE: Any links to Berning's published curves?... - garymuffley 07:55:31 11/15/21 (3)
- I went to the source... - Steve O 13:34:32 11/15/21 (2)
- RE: I went to the source... - maxhifi 09:33:23 11/18/21 (1)
- Diodes!... - Steve O 13:21:33 11/18/21 (0)
- RE: Berning's published curves - hahax@verizon.net 21:39:26 11/14/21 (0)
- I call it a modulator - Triode_Kingdom 15:14:54 11/13/21 (0)
- I'm going with 'triode' on that one... - Ralph 13:22:39 11/11/21 (0)