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In Reply to: RE: No... 5670 is 6.3VAC in series posted by kylealers@gmail.com on August 9, 2015 at 00:01:50:
You need a 6.3VAC source for the 5670 tubes. AFAIK, they cannot be wired in parallel like the 12AX7. Are you absolutely sure about your heater voltage? Better measure it. Pretty sure it is 6.3VAC. If it taps off the main PT.
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Follow Ups
- RE: No... 5670 is 6.3VAC in series - FenderLover 07:23:58 08/09/15 (37)
- RE: No... 5670 is 6.3VAC in series - kylealers@gmail.com 22:54:25 08/09/15 (36)
- Wait... didn't this pre-amp work before? - FenderLover 00:51:54 08/10/15 (35)
- RE: Wait... didn't this pre-amp work before? - kylealers@gmail.com 01:25:02 08/10/15 (0)
- RE: Wait... didn't this pre-amp work before? - kylealers@gmail.com 01:06:08 08/10/15 (33)
- You can hook the 12AX7 in parallel, using that heater tap - FenderLover 01:36:50 08/10/15 (32)
- RE: You can hook the 12AX7 in parallel, using that heater tap - kylealers@gmail.com 09:15:14 08/10/15 (0)
- RE: You can hook the 12AX7 in parallel, using that heater tap - kylealers@gmail.com 08:33:28 08/10/15 (30)
- No... all you need is one 6.3VAC or 6.3VDC source - FenderLover 15:02:41 08/10/15 (29)
- RE: No... all you need is one 6.3VAC or 6.3VDC source - kylealers@gmail.com 22:25:24 08/10/15 (28)
- You are welcome. - FenderLover 23:15:48 08/10/15 (27)
- RE: You are welcome. - kylealers@gmail.com 02:06:41 08/11/15 (25)
- Look for a good silverface Dual Showman to restore - FenderLover 07:34:44 08/11/15 (24)
- RE: Look for a good silverface Dual Showman to restore - kylealers@gmail.com 08:00:50 08/11/15 (22)
- There aren't many good DIY amp kits in that power range - FenderLover 08:05:56 08/11/15 (21)
- RE: There aren't many good DIY amp kits in that power range - kylealers@gmail.com 08:53:25 08/11/15 (20)
- Sure... - FenderLover 09:44:08 08/11/15 (19)
- RE: Sure... - kylealers@gmail.com 09:52:22 08/11/15 (17)
- None at all - FenderLover 13:57:31 08/11/15 (16)
- RE: None at all - kylealers@gmail.com 12:17:55 08/12/15 (14)
- Yes, only if you are going to use the tap in AC form - FenderLover 22:30:34 08/12/15 (13)
- RE: Yes, only if you are going to use the tap in AC form - kylealers@gmail.com 22:39:15 08/12/15 (12)
- 100-ohm or 220-ohm will be fine. - FenderLover 00:20:44 08/13/15 (11)
- RE: 100-ohm or 220-ohm will be fine. - kylealers@gmail.com 02:31:50 08/13/15 (9)
- Cool! - FenderLover 07:13:20 08/13/15 (8)
- RE: Cool! - kylealers@gmail.com 03:35:28 08/14/15 (7)
- center tap - FenderLover 07:15:02 08/14/15 (6)
- RE: center tap - kylealers@gmail.com 01:44:30 08/15/15 (5)
- How did you want to "better" your PSU? - FenderLover 07:36:24 08/15/15 (4)
- RE: How did you want to "better" your PSU? - kylealers@gmail.com 08:08:55 08/15/15 (3)
- RE: How did you want to "better" your PSU? - FenderLover 08:38:36 08/15/15 (2)
- RE: How did you want to "better" your PSU? - kylealers@gmail.com 02:33:38 08/16/15 (1)
- RE: How did you want to "better" your PSU? - FenderLover 03:54:12 08/16/15 (0)
- BTW... - FenderLover 00:21:58 08/13/15 (0)
- You need to know... - FenderLover 06:35:22 08/12/15 (0)
- Layout link - FenderLover 09:46:09 08/11/15 (0)
- DS schematic - FenderLover 07:41:26 08/11/15 (0)
- Portaflex B15N - FenderLover 23:18:35 08/10/15 (0)