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In Reply to: 5814 instead of 12au7 - loud noise posted by erik on February 5, 2024 at 08:05:26:
The 5814A is not a direct sub for a 12AU7 because the heater current differs. I wouldn't rule out a possible bad tube, however. Do you have any other circuits within which to try your 5814A? Also consider cleaning the pins and re-trying.
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Follow Ups
- RE: 5814 instead of 12au7 - loud noise - opalize 09:20:30 02/05/24 (1)
- RE: 5814 instead of 12au7 - loud noise - erik 10:35:38 02/05/24 (0)