Category: 21b- Tube Data Sheet

Classification: Dome-type bulb of glass, a white ceramic base with four-prong bayonet golden pins, oxide coated filamentary, carbon plate triode. Application: Audio frequency amplifier where power outputs of approximately 22.5watts or less is required at relatively low plate voltages. Dimensions: Dimensions, outline diagrams of the tube and bases, and the arrangement of electrode connections to the base terminalsRead More

Classification- Dome-type bulb of glass, a white ceramic base with four-prong bayonet golden pins, oxide coated filamentary, mesh plate or carbon plate triode. Application -Audio frequency amplifier where power outputs of approximately 10 watts or less is required at relatively low plate voltages. Dimensions -Dimensions, outline diagrams of the tube and bases, and the arrangement of electrode connectionsRead More