Based on the above noted specification, yes these tubes will work in your Cary AE211 without issue. I have a lot of 845 tubes, but unfortunately, not the Sophia 845 Mk3 Carbon plate, therefore, I cannot comment on their sound.
sophia 845 markIII and cary 211M AE
specification of this tube:-
Sophia Electric 845 MK3 Vacuum Tube Specification
Nominal operating conditions and parameters:
Filament voltage 10.0V
Nominal filament current 3.2A
Plate voltage 1250V
Grid voltage -200V
Plate current 80mA
Plate resistance 1.7 Kohms
Amplification factor 5.0
Load resistance 3.4 Kohms
Signal voltage(pk) 69.0V
Output Power 25W
Limiting Operation conditions for safe operation-nor simultaneous ratings:
Maximum plate voltage 1250 volts
Maximum plate dissipation 75 watts
Maximum plate current 120 ma
Maximum input power of signal 150 Watts
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CAN I USE THIS TUBE WITH CARY 211m AE
AND WHAT ABOUT IT SOUND.
Sophia Electric 845 MK3 Vacuum Tube Specification
Nominal operating conditions and parameters:
Filament voltage 10.0V
Nominal filament current 3.2A
Plate voltage 1250V
Grid voltage -200V
Plate current 80mA
Plate resistance 1.7 Kohms
Amplification factor 5.0
Load resistance 3.4 Kohms
Signal voltage(pk) 69.0V
Output Power 25W
Limiting Operation conditions for safe operation-nor simultaneous ratings:
Maximum plate voltage 1250 volts
Maximum plate dissipation 75 watts
Maximum plate current 120 ma
Maximum input power of signal 150 Watts
===========================
CAN I USE THIS TUBE WITH CARY 211m AE
AND WHAT ABOUT IT SOUND.
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