"As you'd pointed out as very likely during your visit, these are better than anything else—NOS or current"
Elrog 845 adhere to all RCA specifications for 845 tubes. They are produced to exacting, Military Specifications.
Filament Thoriated tungsten
Voltage 10V +/- 0.5V
Current 3.2A +/- 0.05A
Amplification factor 5.3 +/- 0.2