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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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Tube DIY Asylum Do It Yourself (DIY) paradise for tube and SET project builders. |
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Hi guys,
In between shovlin over 2 foot of snow I dug out one of my tube preamp projects. This is a 6bx7gt common cathode direct coupled to the second stage cathode follower 20-24ma each stage. A lovely warn dark sound that goes great with 2092 class d amp modules.
The problem is touching the chassis is heard through the amp. Even the slightest touch.
What am I missing?
Thanks, Scott
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Topic - Microphonic chassis - Scholl 14:04:23 01/23/16 (9)
- humm, noise and microphonics greatly reduce along with the magic - Scholl 07:07:13 01/26/16 (0)
- Switched to 6SN7s - Scholl 13:20:14 01/25/16 (2)
- RE: Switched to 6SN7s - Triode_Kingdom 05:56:35 01/26/16 (1)
- RE: Switched to 6SN7s - Scholl 07:05:03 01/26/16 (0)
- RE: Microphonic chassis - hifipaul 06:48:13 01/24/16 (0)
- RE: Microphonic chassis--low noise regulators - Scholl 05:54:26 01/24/16 (0)
- RE: Microphonic chassis - Triode_Kingdom 22:05:49 01/23/16 (0)
- Could be a grounding artifact if the touch is really light - Chip647 16:03:31 01/23/16 (0)
- RE: Microphonic chassis - FenderLover 14:21:13 01/23/16 (0)
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