Well, I finally got around to comparing my TJ mesh plate 300Bs to the kit supplied EH 300Bs, which I have been using for several months. I am pleased to have found that there is no significant difference between the two tube designs. The EH is a quality tube that I have used in the past with out any problems. My son uses them in a 300B amp.
As a result, I will be able to sell the mesh plates as I don't need them.
Bottlehead picked a winner with the EH300B!
300B amps with 6SJ7 in Triode mode, dc fil. volt. for 300Bs. BeePre with Bill Milosz built Eros Phono. Teres Turntable, Pete Riggle "12 inch Woody Tonearm" Grace F9 with Soundsmith ruby cantilever stylus.Cambridge Audio CD with MHDT Labs Orchid DAC Rega NAOS Spkrs, Atelier Rullit super tweeters