Shuguang Vacuum Tube 300BA (300B)

 

Two tubes for a matched pair

Four tubes for a matched quad 

 

Triode: 300BA (300B)DESCRIPTION

300BA is compatible with 300B. Direct heating cathode, medium power consumption, two triodes can be used in the class A amplification. It is adapted to be used in audio frequency range which requires high output power of 100W.

 

300B-C long-life design, use pure graphite anode and plate power dissipation can reach up to 60W. If you adjust the design parameters properly, single tube can be used as class A amplifier, and can delivery output power higher than 20W.

 

FEATURES

· Carbonized nickel plate

· Gold-plated grid and tube socket pins

· Ceramic tube socket

· New design of filament hooking

 

 

SPECIFICATION Filament Heating Uf(DC)…………………5V If(DC) ……………… 1.2A     Maximum Ratings Plate voltage………………480V Plate dissipation power……40W Cathode current For self-biasing voltage………………100mA For fixed-biasing voltage………………70mA     CapacitancesInput capacitance……………………9pF Output capacitance…………………4.3pF Muller capacitance…………………15pF DC Parameters Ua…………………………300V -Ug………………………… 60V Ia…………………………60mA Gm……………………5.5mA/V Ri…………………………700 u……………………………3.85 Pout………………………6.6W