In Reply to: RE: update posted by Tre' on October 18, 2016 at 15:58:25:
Interesting. I can adjust the impedance of the OPT, but only in larger amounts. I think the settings are 2.5k, 5k and 10k. I have it at 5k at the moment as most of what I read recommended that for the 845. So would that mean there are really only 3 operating points available where the formula would apply? Is the plate resistance for different currents and voltages available anywhere, or is it something you have to measure? Last but not least, is there likely to be any improvement in the sound at these other points as they will take me away from the recommended load and the plate voltage and current the Japanese dudes have stated are the best for low voltage 845's. I suppose it would be interesting to try it for at least one of the other load settings if I can figure out how to get the plate resistance. Would it have to be a true triode to work, or could it work with the triode connected 813 too? Oh, and thanks for adding another page to my notebook!
Edits: 10/18/16 10/18/16 10/18/16
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Follow Ups
- RE: update - vinnie2 18:18:46 10/18/16 (19)
- RE: update - Tre' 19:08:50 10/18/16 (18)
- RE: update - vinnie2 04:58:54 10/19/16 (17)
- RE: update - Tre' 07:18:45 10/19/16 (16)
- RE: update - vinnie2 08:40:24 10/19/16 (15)
- a graph.... - Tre' 12:54:01 10/19/16 (9)
- RE: a graph.... - vinnie2 13:22:50 10/19/16 (8)
- RE: a graph.... - Tre' 13:36:49 10/19/16 (7)
- RE: a graph.... - vinnie2 16:58:52 10/19/16 (6)
- Ditto vinnie. Thanx Tre! Info saved. - 91derlust 02:28:37 10/20/16 (4)
- Here's a helpful PDF - Tre' 09:59:13 10/20/16 (3)
- RE: Here's a helpful PDF - 91derlust 12:38:58 10/20/16 (2)
- RE: Here's a helpful PDF - vinnie2 12:54:30 10/20/16 (1)
- Yes. I!m with ya vinnie! (nt) - 91derlust 02:17:39 10/21/16 (0)
- RE: a graph.... - Tre' 17:06:11 10/19/16 (0)
- RE: update - Tre' 11:56:01 10/19/16 (4)
- RE: update - vinnie2 13:32:22 10/19/16 (3)
- RE: update - Tre' 13:40:22 10/19/16 (2)
- RE: update - vinnie2 17:01:17 10/19/16 (1)
- RE: update - vinnie2 18:19:59 10/19/16 (0)