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In Reply to: Bias transformer trick. posted by gusser on May 24, 2017 at 15:01:16:
Errr...connecting half a 12.6V to 6.3 VAC will deliver full primary voltage( as in 120V ). If you hook the whole 12.6 winding up to 6.3, you will get 60VAC out on what used to be its primary...:)
cheers,
Douglas
Friend, I would not hurt thee for the world...but thou art standing where I am about to shoot.
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Follow Ups Full ThreadTopic - Questions about 6BG6G amp build (schematic) Grommes 216BA - PeterI 21:02:33 05/22/17 (52)
- First thing I'd do is get rid of the vacuum tube rectifier OR add some Soft Recovery diodes in parallel - Timbo in Oz 03:12:33 05/29/17 (1)
- RE: First thing I'd do is get rid of the vacuum tube rectifier Nah - PeterI 11:21:48 05/29/17 (0)
- RE: Questions about 6BG6G amp build (schematic) Grommes 216BA - Triode_Kingdom 07:53:50 05/25/17 (10)
- RE: Questions about 6BG6G amp build (schematic) Grommes 216BA - PakProtector 09:26:11 05/26/17 (1)
- RE: Questions about 6BG6G amp build (schematic) Grommes 216BA - Triode_Kingdom 12:27:51 05/27/17 (0)
- RE: Questions about 6BG6G amp build (schematic) Grommes 216BA - PeterI 08:35:57 05/25/17 (7)
- RE: Questions about 6BG6G amp build (schematic) Grommes 216BA - Triode_Kingdom 09:06:12 05/25/17 (6)
- Thanks for that - PeterI 09:34:11 05/25/17 (5)
- I just do what TDSL tells me to do :) - pic - PeterI 11:45:38 05/25/17 (3)
- TDSL is Wrong - Triode_Kingdom 12:41:27 05/25/17 (2)
- RE: TDSL is Wrong - PeterI 12:58:55 05/25/17 (1)
- RE: TDSL is Wrong - Triode_Kingdom 15:08:53 05/25/17 (0)
- RE: Thanks for that - Triode_Kingdom 10:05:32 05/25/17 (0)
- Bias transformer trick. - gusser 15:01:16 05/24/17 (2)
- RE: Bias transformer trick. - PakProtector 09:28:22 05/26/17 (0)
- RE: Bias transformer trick. Thanks - PeterI 05:56:41 05/25/17 (0)
- Not to beat this thing to death but can anyone address the pentode ? - PeterI 14:41:11 05/24/17 (5)
- RE: Not to beat this thing to death but can anyone address the pentode ? - Eli Duttman 16:59:34 05/24/17 (4)
- RE: Not to beat this thing to death but can anyone address the pentode ? - PeterI 04:31:41 05/25/17 (1)
- RE: Not to beat this thing to death but can anyone address the pentode ? - PakProtector 05:28:30 05/25/17 (0)
- RE: Not to beat this thing to death but can anyone address the pentode ? - PakProtector 01:34:45 05/25/17 (0)
- Second Eli's suggestion. - sser2 22:55:38 05/24/17 (0)
- RE: Questions about 6BG6G amp build (schematic) Grommes 216BA - Eli Duttman 12:00:31 05/23/17 (9)
- Here is another way of doing this with a pair of chokes and a small charging cap. - Michael Samra 13:28:09 05/23/17 (3)
- RE: Here is another way of doing this with a pair of chokes and a small charging cap. - PeterI 14:38:49 05/23/17 (2)
- RE: Here is another way of doing this with a pair of chokes and a small charging cap. - Michael Samra 01:21:35 05/24/17 (1)
- OPTs and FB - PeterI 07:30:08 05/24/17 (0)
- RE: Questions about 6BG6G amp build (schematic) Grommes 216BA - PeterI 12:14:10 05/23/17 (4)
- RE: Questions about 6BG6G amp build (schematic) Grommes 216BA - Eli Duttman 13:14:19 05/23/17 (1)
- RE: Questions about 6BG6G amp build (schematic) Grommes 216BA - PeterI 14:44:24 05/23/17 (0)
- RE: Questions about 6BG6G amp build (schematic) Grommes 216BA - Jim McShane 13:08:35 05/23/17 (1)
- RE: Questions about 6BG6G amp build (schematic) Grommes 216BA - PeterI 19:57:05 06/21/17 (0)
- RE: Questions about 6BG6G amp build (schematic) Grommes 216BA - Michael Samra 03:07:41 05/23/17 (8)
- That global NFB... - PakProtector 14:29:01 05/23/17 (2)
- RE: That global NFB... - Tre' 16:22:42 05/23/17 (1)
- Mostly because the OPT is not inside that feedback loop (nt) - Steve O 21:36:14 05/23/17 (0)
- RE: Questions about 6BG6G amp build Grommes 216BA - Pic - PeterI 07:08:06 05/23/17 (4)
- RE: Questions about 6BG6G amp build Grommes 216BA - Pic - awesterner 21:32:53 05/25/17 (1)
- RE: Questions about 6BG6G amp build Grommes 216BA - Pic - Michael Samra 08:59:18 05/27/17 (0)
- I'm not saying it can't work and I love the W5ms - Michael Samra 12:35:46 05/23/17 (0)
- Coupling cap values seem ok? NT - PeterI 07:20:43 05/23/17 (0)
- RE: Questions about 6BG6G amp build (schematic) Grommes 216BA - PakProtector 02:22:18 05/23/17 (7)
- RE: Questions about 6BG6G amp build (schematic) Grommes 216BA - Michael Samra 03:13:29 05/23/17 (6)
- RE: Questions about 6BG6G amp build Grommes 216BA - pic - PeterI 06:50:14 05/23/17 (0)
- RE: Questions about 6BG6G amp build (schematic) Grommes 216BA - PakProtector 05:33:12 05/23/17 (4)
- RE: Questions about 6BG6G amp build (schematic) Grommes 216BA - Michael Samra 13:10:58 05/23/17 (0)
- "Or, build, learn, and then decide how to apply what you learned for further improvement." - FenderLover 07:38:32 05/23/17 (2)
- RE: "Or, build, learn, and then decide how to apply what you learned for further improvement." - PeterI 08:31:47 05/23/17 (1)
- RE: "Or, build, learn, and then decide how to apply what you learned for further improvement." - Michael Samra 13:03:21 05/23/17 (0)
- RE: Questions about 6BG6G amp build (schematic) Grommes 216BA - FenderLover 21:40:17 05/22/17 (2)
- RE: Questions about 6BG6G amp build (schematic) bias - PeterI 06:37:09 05/23/17 (1)
- RE: Questions about 6BG6G amp build (schematic) bias - FenderLover 07:35:57 05/23/17 (0)
Follow Ups
- RE: Bias transformer trick. - PakProtector 09:28:22 05/26/17 (0)