In Reply to: RE: Bringing down the ripple......? posted by Tre' on July 17, 2023 at 08:22:39:
Well Tre, I would not use a 470uF on a 5U4GB that uses less than maximum current. I know of no rectifier tube derating current chart vs maximum capacitance. Thus, I follow the tube manufactures recommendation. Need better filtering, use a choke.
This post is made possible by the generous support of people like you and our sponsors:
Follow Ups
- RE: Bringing down the ripple......? - sony6060 08:27:36 07/17/23 (70)
- RE: Bringing down the ripple......? - Tre' 10:27:30 07/18/23 (69)
- RE: Bringing down the ripple......? - sony6060 11:36:36 07/18/23 (68)
- RE: Bringing down the ripple......? - Tre' 13:30:18 07/18/23 (67)
- RE: Bringing down the ripple......? - sony6060 13:56:49 07/18/23 (66)
- RE: Bringing down the ripple......? - Tre' 14:09:52 07/18/23 (65)
- RE: Bringing down the ripple......? - sony6060 14:12:11 07/18/23 (64)
- Here's the chart you ask for - Tre' 14:21:24 07/18/23 (63)
- I am going to try one more time - Tre' 15:39:10 07/18/23 (0)
- RE: Here's the chart you ask for - sony6060 15:02:33 07/18/23 (61)
- RE: Here's the chart you ask for - Tre' 15:30:15 07/18/23 (60)
- RE: Here's the chart you ask for - sony6060 17:50:56 07/18/23 (59)
- RE: Here's the chart you ask for - sony6060 18:04:58 07/18/23 (58)
- RE: Here's the chart you ask for - trobbins 17:55:27 07/19/23 (7)
- RE: Here's the chart you ask for - sony6060 17:58:42 07/19/23 (6)
- RE: Here's the chart you ask for - FlaCharlie 06:47:43 07/20/23 (0)
- RE: Here's the chart you ask for - Triode_Kingdom 18:39:13 07/19/23 (4)
- RE: Here's the chart you ask for - sony6060 18:42:22 07/19/23 (3)
- RE: Here's the chart you ask for - Triode_Kingdom 21:21:29 07/19/23 (0)
- RE: Here's the chart you ask for - Tre' 19:31:47 07/19/23 (1)
- I found the math - Tre' 20:16:45 07/19/23 (0)
- RE: Here's the chart you ask for - Triode_Kingdom 19:35:27 07/18/23 (49)
- RE: Here's the chart you ask for - sony6060 21:08:40 07/18/23 (46)
- RE: Here's the chart you ask for - Triode_Kingdom 21:25:25 07/18/23 (45)
- RE: Here's the chart you ask for - sony6060 21:31:28 07/18/23 (44)
- RE: Here's the chart you ask for - tube wrangler 20:29:32 07/22/23 (23)
- RE: Here's the chart you ask for - sony6060 00:38:36 07/23/23 (22)
- RE: Here's the chart you ask for - tube wrangler 15:01:47 07/23/23 (21)
- RE: Here's the chart you ask for - sony6060 16:34:14 07/23/23 (20)
- RE: Here's the chart you ask for - FlaCharlie 18:56:51 07/23/23 (0)
- RE: Here's the chart you ask for - Triode_Kingdom 18:07:50 07/23/23 (18)
- RE: Here's the chart you ask for - sony6060 19:25:32 07/23/23 (17)
- RE: Here's the chart you ask for - FlaCharlie 06:53:36 07/24/23 (16)
- RE: Here's the chart you ask for - sony6060 07:02:28 07/24/23 (15)
- RE: Here's the chart you ask for - FlaCharlie 07:48:21 07/24/23 (0)
- As long as the max rating for peak plate current is not exceeded you can use any cap value you want. - Tre' 07:22:29 07/24/23 (13)
- RE: As long as the max rating for peak plate current is not exceeded you can use any cap value you want. - sony6060 10:13:39 07/24/23 (12)
- RE: As long as the max rating for peak plate current is not exceeded you can use any cap value you want. - Tre' 11:13:32 07/24/23 (11)
- RE: As long as the max rating for peak plate current is not exceeded you can use any cap value you want. - sony6060 11:41:00 07/24/23 (10)
- RE: As long as the max rating for peak plate current is not exceeded you can use any cap value you want. - Tre' 12:14:42 07/24/23 (9)
- RE: As long as the max rating for peak plate current is not exceeded you can use any cap value you want. - sony6060 12:27:32 07/24/23 (8)
- I'm getting ready to call BS on you. - Tre' 12:37:21 07/24/23 (7)
- RE: I'm getting ready to call BS on you. - sony6060 14:02:15 07/24/23 (6)
- RE: I'm getting ready to call BS on you. - sony6060 14:15:23 07/24/23 (5)
- RE: I'm getting ready to call BS on you. - sony6060 14:19:29 07/24/23 (4)
- RE: I'm getting ready to call BS on you. - sony6060 14:27:45 07/24/23 (3)
- I guess 40uf is not the maximum input cap value for a 5u4. Thanks for the info. - Tre' 15:10:45 07/24/23 (2)
- RE: I guess 40uf is not the maximum input cap value for a 5u4. Thanks for the info. - sony6060 16:20:04 07/24/23 (1)
- RE: I guess 40uf is not the maximum input cap value for a 5u4. Thanks for the info. - Rod M 17:13:45 07/24/23 (0)
- RE: Here's the chart you ask for - trobbins 02:07:58 07/21/23 (0)
- RE: Here's the chart you ask for - sony6060 06:03:25 07/19/23 (18)
- One more - Tre' 15:27:50 07/19/23 (17)
- RE: One more - sony6060 15:42:28 07/19/23 (16)
- Who said it was a 5u4 data sheet? - Tre' 16:09:27 07/19/23 (3)
- RE: Who said it was a 5u4 data sheet? - sony6060 16:13:32 07/19/23 (2)
- RE: Who said it was a 5u4 data sheet? - Tre' 16:18:42 07/19/23 (1)
- RE: Who said it was a 5u4 data sheet? - sony6060 17:39:03 07/19/23 (0)
- RE: One more - Triode_Kingdom 16:00:35 07/19/23 (11)
- RE: One more - sony6060 16:08:38 07/19/23 (10)
- RE: One more - kyle 05:12:50 07/20/23 (9)
- RE: One more - sony6060 07:37:18 07/20/23 (8)
- RE: One more - kyle 09:29:43 07/20/23 (3)
- RE: One more - sony6060 09:34:22 07/20/23 (2)
- RE: One more - FlaCharlie 10:48:00 07/20/23 (0)
- RE: One more - Tre' 09:41:51 07/20/23 (0)
- RE: One more - Tre' 09:21:13 07/20/23 (3)
- RE: One more - sony6060 09:25:35 07/20/23 (2)
- RE: One more - Tre' 09:38:40 07/20/23 (1)
- RE: One more - sony6060 10:00:01 07/20/23 (0)
- Just for the record, here is an example of a 5ar4 where 20uf is too much capacitance. - Tre' 19:43:34 07/18/23 (1)
- and another example where 220uf is just fine - Tre' 19:48:23 07/18/23 (0)