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In Reply to: RCA 12AX7 Long Black Plate - Noisy compared to Long Grey Plate? posted by Paul Kehayas on March 28, 2016 at 13:06:44:
I've never had noise problems with RCA blackplates as input tubes in my Rogue amp. Don't remember reading that they were prone to noise either.
If you are using them in a phono circuit, they should be screened for low noise. That would be true of any tubes you would use in that circuit.
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Follow Ups
- RE: RCA 12AX7 Long Black Plate - Noisy compared to Long Grey Plate? - Mendel 07:06:07 03/31/16 (0)