Re: Lightning icon required =========>
"A red anode was a warning from which you could recover."
We had a valve PA system (mono) in our hall of residence using a pair of 807s. Periodically it would go unstable with the familiar red anode syndrome. Simply swapping them round didn't work 807s were expensive on student finance in the early '60s so I bought an extra one. I then swapped one of the old ones for the new one. Periodically the same problem would reoccur and I then swapped them round again to get a stable combination.
Biting the hand that feeds IT
