How about a PA amplifier with push-pull 807s?
When I first started work we had an idiot who'd built a PA amp using 807s for his local church hall which had developed a fault. Unfortunately I was at college the day he brought it in to work on it. Apparently, there was a loud crump and he disappeared in a black cloud from which he staggered adorned with liberal amounts of stuffing and tinfoil.
The HT was over 600V.
The main smoothing was rated at 450V max!
He left not long after that ...
When I first started work we had an idiot who'd built a PA amp using 807s for his local church hall which had developed a fault. Unfortunately I was at college the day he brought it in to work on it. Apparently, there was a loud crump and he disappeared in a black cloud from which he staggered adorned with liberal amounts of stuffing and tinfoil.
The HT was over 600V.
The main smoothing was rated at 450V max!
He left not long after that ...
