Quote:
Originally Posted by ts31966
Marty what position do you like to put the 12BZ7 tube in? Have you experimented with gray plates vs black plates?
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Yes I have done some extensive tests in the past and again here recently. The black plate will dissipate heat faster than a gray plate. The black coating used to cover the nickle plates is much different than the coatings on the gray plates.
Without getting into a lengthy post, let me just say that black plates tend to have stronger low mids and mids than a gray plate that tends to sing in the mids to upper mids. Go back and read my earlier post on swapping the BP in my amp. I stated that I felt it added 10 to 15Hz on the bottom end. It was just a much thicker sound. It would probably be better if I had a seven string baritone guitar. That would really let me know, but instead I just did a D drop and played a little in a D tuning. The BP has a lot of balls.
If I come across any exceptional tubes, I could be enticed to part ways with them. I will keep my eyes open for any stellar tubes on Ebay.
Marty