In Reply to: RE: ESR posted by Michael Samra on August 23, 2014 at 09:50:28:
"I cannot understand anyone would put that kind of capacitance in an amp at 600 to 800vdc because we aren't talking massive amounts of current at those voltages"
I agree with everything you've said, and I completely believe the improvements you heard from the caps you installed. I'm just skeptical that ESR is the culprit. 2,700 uF caps almost certainly exhibit a lot of hysteresis, not to mention their inductance at higher frequencies. As you say, it's just not an appropriate value for this application.
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Follow Ups
- RE: ESR - Triode_Kingdom 10:14:21 08/23/14 (14)
- Hysteresis of what parameters?... - Steve O 11:08:52 08/23/14 (12)
- RE: Hysteresis of what parameters?... - Triode_Kingdom 13:02:43 08/23/14 (11)
- We've never really figured out just what parameter Mr. Bench is measuring... - Steve O 13:23:09 08/23/14 (10)
- It's there in black and white. - Mark Kelly 00:41:20 08/25/14 (5)
- Isn't that essentially voltage coef of cap from a practical perspective?... - Steve O 06:25:40 08/25/14 (0)
- RE: It's there in black and white. - cpotl 03:32:32 08/25/14 (3)
- Analogy - Mark Kelly 04:02:38 08/25/14 (2)
- RE: Analogy - cpotl 04:17:35 08/25/14 (1)
- RE: Analogy - Triode_Kingdom 09:07:20 08/25/14 (0)
- RE: We've never really figured out just what parameter Mr. Bench is measuring... - Triode_Kingdom 20:17:16 08/23/14 (3)
- RE: We've never really figured out just what parameter Mr. Bench is measuring... - Steve O 20:59:42 08/23/14 (2)
- RE: We've never really figured out just what parameter Mr. Bench is measuring... - cpotl 02:54:26 08/24/14 (1)
- RE: We've never really figured out just what parameter Mr. Bench is measuring... - Steve O 07:49:18 08/24/14 (0)
- RE: ESR (more) - Triode_Kingdom 10:47:52 08/23/14 (0)