I have NEVER heard a manufacture tell anyone to leave the "Power Valves" on.. EVER.. Then again, what do I know..
The little signal valves, I've seen stay on for months at a time.. Some designs are VERY low voltage and the valves last 15-20,000 hours.. I've not seen power valves do that.. 5,000 hours is really a push. 2-3000 is more like it..
I've never seen a signal valve erupt, and breach the glass, rectifier and power valves, I have...
What about some of the hand made valves.. 4K+ for a pair. Rebuildable.
Maybe I should start making them out of old pint and quart canning jars..
Gears are grinding...
Regards
The little signal valves, I've seen stay on for months at a time.. Some designs are VERY low voltage and the valves last 15-20,000 hours.. I've not seen power valves do that.. 5,000 hours is really a push. 2-3000 is more like it..
I've never seen a signal valve erupt, and breach the glass, rectifier and power valves, I have...
What about some of the hand made valves.. 4K+ for a pair. Rebuildable.
Maybe I should start making them out of old pint and quart canning jars..
Gears are grinding...
Regards