20-10-2020, 10:40 AM
Hi.
Id not worry about over running a 6V6 they are remarkably tough and long lasting. I repaired a PA amplifier at Andrew Barclays in Kilmarnock around 12 years ago, this amp used an EF37 6V6 and 5Z4, it had never been turned off in over 50 years and no one could say it was ever fixed. It's condition made me think it was untouched. It was thick with dust and other debris. The fault was a broken lead from the output transformer. After fixing the lead it was perfect. Those valves I would say must have held a world record for life and use. I cleaned up the amp while there and did voltage readings and was quite surprised that none of the valves were low emission. I've also run 6V6s at 400 anode volts with no I'll effects
One question does this amp have a mechanical reverb unit?
Id not worry about over running a 6V6 they are remarkably tough and long lasting. I repaired a PA amplifier at Andrew Barclays in Kilmarnock around 12 years ago, this amp used an EF37 6V6 and 5Z4, it had never been turned off in over 50 years and no one could say it was ever fixed. It's condition made me think it was untouched. It was thick with dust and other debris. The fault was a broken lead from the output transformer. After fixing the lead it was perfect. Those valves I would say must have held a world record for life and use. I cleaned up the amp while there and did voltage readings and was quite surprised that none of the valves were low emission. I've also run 6V6s at 400 anode volts with no I'll effects
One question does this amp have a mechanical reverb unit?
