Sophia Electric Classic II 300B Tubes
Sophia Electric is excited to announce the launch of a new magical sounding Classic II 300B tubes for the audiophile community. Over 6 years in the making and multiple voicing revisions, Richard is ready to release a new Sophia Electric product with a signature magical sound.
Three color options are available for the Classic II 300B tubes: clear glass with white ceramic base, clear glass with black base, and blue glass with blue ceramic base.
Sophia Electric Classic 300B Vacuum Tube Specification
|Nominal filament current||1.2A|
|Grid voltage (AC filament)||**61V|
|Grid voltage (DC filament)||***58V|
|Plate current||62.5 mA|
|Grid to plate transconductance||5700 ohms|
|Grid current||0.05 uA|
|Plate resistance||700 ohms|
Limiting Operation conditions for safe operation-nor simultaneous ratings:
|Maximum plate voltage||450 volts|
|Maximum plate dissipation||40 watts|
|Maximum plate current of average tube for fixed grid bias||70 ma|
|Maximum plate current for manually adjusted grid or self-biasing circuit||100 ma|
Option 1: $999.99 per Grade A matched pair with one year warranty.
Option 2: $899.99 per Grade A matched pair with 30 days warranty.
Option 3: $799.99 per Grade B matched pair with one year warranty.
Option 4: $699.99 per Grade B matched pair with 30 days warranty.