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Tube DIY Asylum: RE: "Singing" Power Transformer by trobbins Do It Yourself (DIY) paradise for tube and SET project builders. |
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Tube DIY Asylum: RE: "Singing" Power Transformer by trobbins Do It Yourself (DIY) paradise for tube and SET project builders. |
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In Reply to: "Singing" Power Transformer posted by mikeyb on October 11, 2019 at 07:35:48:
Why is the heater grounded? It seems that using two heater transformers would have been a better design choice.
Not sure if it is related to the singing, but there are likely to be circulating currents through the heater-cathode of the 6CA4's either now or with some ageing.
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Topic - "Singing" Power Transformer - mikeyb 07:35:48 10/11/19 ( 18)
- RE: "Singing" Power Transformer - FenderLover 07:01:35 10/13/19 ( 0)
RE: "Singing" Power Transformer - trobbins 10/13/19 03:18:25 10/13/19 ( 6)
- RE: "Singing" Power Transformer - mikeyb 11:37:10 10/13/19 ( 5)
- RE: "Singing" Power Transformer - trobbins 18:18:57 10/13/19 ( 4)
- RE: "Singing" Power Transformer - mikeyb 09:57:46 10/14/19 ( 3)
- RE: "Singing" Power Transformer - trobbins 16:28:16 10/14/19 ( 2)
- RE: "Singing" Power Transformer - mikeyb 18:55:21 10/14/19 ( 1)
- RE: "Singing" Power Transformer - trobbins 22:17:39 10/14/19 ( 0)
Can you feel the vibrations on the laminations... - FenderLover 18:47:37 10/11/19 ( 4)
- RE: Can you feel the vibrations on the laminations... - mikeyb 20:02:44 10/11/19 ( 3)
- "Holding the transformer's hosing stops the noise.Holding the transformer's hosing stops the noise." Bingo! - Chip647 20:48:59 10/11/19 ( 2)
- RE: "Holding the transformer's hosing stops the noise.Holding the transformer's hosing stops the noise." Bingo! - mikeyb 07:36:53 10/12/19 ( 0)
- Rubber Washers - Triode_Kingdom 01:46:30 10/12/19 ( 0)
RE: "Singing" Power Transformer - Triode_Kingdom 16:55:52 10/11/19 ( 1)
- RE: "Singing" Power Transformer - mikeyb 17:31:47 10/11/19 ( 0)
Yes. Tighten down the bolts securing the end bells. - Ralph 12:20:59 10/11/19 ( 0)
did it always sing? - elblanco 09:44:20 10/11/19 ( 1)
- RE: did it always sing? - mikeyb 16:45:16 10/11/19 ( 0)
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