Having used Hagerman snubbers on a couple of amps with solid state rectification I have now turned my attention to an amp that uses a 5U4GB rectifier.I google some writings on the matter but cannot figure out whether to put the snubber across pins 4 and 6 or pins 8 and 2 (or both). Both are secondaries no?
I’m thinking that snubbing the 5v heater (pins 8 and 2) I should eliminate all high frequency oscillation that may bleed into the amp, but I don’t have a scope to measure.
And then on a related topic, is it a worthwhile Idea to snub the secondaries on isolation transformers? I have been reading as much as I can on Hagerman snubbers but cannot find anything for isolation transformers. But I figure being transformers, they will suffer the same high freq. oscillation as power transformers do.
Thanks
Cleet.
Edits: 09/23/14
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Topic - Hagerman snubber vs. 5U4GB - Cleet Torres 05:35:51 09/23/14 (37)
- 5U4GB does not need snubbers - Chip647 07:08:44 09/23/14 (36)
- All this talk - unclestu 16:42:23 09/25/14 (15)
- RE: All this talk - Triode_Kingdom 10:52:17 09/26/14 (4)
- Neither - unclestu 14:28:22 09/26/14 (3)
- RE: Neither - Tre' 16:48:09 09/26/14 (2)
- RE: Neither - unclestu 16:54:58 09/26/14 (1)
- RE: Neither - Tre' 17:14:35 09/26/14 (0)
- Mr. John Swenson, E.E. and listener, is the one who could contribute here, Paging Swenson !!! - drlowmu 17:26:45 09/25/14 (3)
- 100 KHz to 700 KHz - high Q resonance - drlowmu 07:40:09 09/29/14 (1)
- It only happens with SS rectifiers (nt) - Triode_Kingdom 08:22:40 09/29/14 (0)
- RE: Mr. John Swenson, E.E. and listener, is the one who could contribute here, Paging Swenson !!! - op48no1 09:13:27 09/28/14 (0)
- RE: All this talk - Tre' 17:22:37 09/25/14 (5)
- RE: The way I see it - Russ57 18:30:35 09/25/14 (3)
- Small correction Russ - Cleet Torres 05:55:51 09/26/14 (0)
- you can find - unclestu 19:05:27 09/25/14 (0)
- RE: The way I see it - Tre' 18:38:58 09/25/14 (0)
- RE: All this talk - unclestu 17:50:21 09/25/14 (0)
- RE: 5U4GB does not need snubbers - Cleet Torres 17:45:33 09/23/14 (4)
- You're Ignoring Good Advice - Triode_Kingdom 12:42:04 09/24/14 (3)
- RE: You're Ignoring Good Advice - Cleet Torres 06:27:19 09/26/14 (2)
- RE: You're Ignoring Good Advice - Triode_Kingdom 10:45:21 09/26/14 (1)
- RE: You're Ignoring Good Advice - Cleet Torres 13:06:53 09/26/14 (0)
- RE: 5U4GB does not need snubbers - drlowmu 08:19:02 09/23/14 (14)
- Jeff, that is incorrect - richardl 18:05:09 09/24/14 (5)
- RE: Jeff, that is incorrect - drlowmu 12:18:23 09/25/14 (4)
- He thinks that the transformers ring that high? - richardl 13:31:30 09/25/14 (3)
- RE: He thinks that the transformers ring that high? - Tre' 14:58:21 09/25/14 (2)
- Gotcha. - richardl 16:34:13 09/26/14 (1)
- RE: Gotcha. - Tre' 16:56:42 09/26/14 (0)
- I think you need to actually read Jim's white paper (attached) - Chip647 19:17:46 09/23/14 (6)
- Have a look at this post - Cleet Torres 20:40:43 09/23/14 (0)
- Don't find the part where he makes that comment - Cleet Torres 20:37:08 09/23/14 (4)
- RE: Don't find the part where he makes that comment - Chip647 05:10:43 09/24/14 (3)
- Thanks for you insights - Cleet Torres 05:06:09 09/25/14 (0)
- RE: Don't find the part where he makes that comment - Lew 11:09:56 09/24/14 (1)
- RE: Don't find the part where he makes that comment - Chip647 17:18:09 09/24/14 (0)
- RE: 5U4GB does not need snubbers - Cleet Torres 17:37:23 09/23/14 (0)