03-01-2022, 09:31 AM
Interesting re the dimples.
I sometimes think this is a little bit of Audiofoolery!
The band guys with (Tuned) Marshall amps running high HT always complained about the valves with dimples on the top as they were a weak point, would crack or suck in. Take mind these valves were running way out of spec and had a limited life of perhaps a dozen four hour gigs!!
I sometimes think this is a little bit of Audiofoolery!
The band guys with (Tuned) Marshall amps running high HT always complained about the valves with dimples on the top as they were a weak point, would crack or suck in. Take mind these valves were running way out of spec and had a limited life of perhaps a dozen four hour gigs!!
