Comparator
Direct-heated cathode medium power triode, suitable for class A1 amplification. In audio amplifiers, it is suitable for applications requiring an output power of 10W.
Extreme Rating
Anode voltage.................480V
Anode dissipation power............40W
Cathode current
Self-bias.................100 mA
Fixed bias.................70 mA
Interelectrode capacitance
Input capacity.................9PF
Output capacitance................................4.3PF
Inter-circuit capacitance....................15PF
Static parameters
Ua............................300V
-Ug........................ 60V
Current value...............60 mA
Transconductance................................5.5 mA/V
Ri........................0.7 K
................................ 3.85
Pouting........................6.6W
Recommended parameters
Ugg
Ua Uf (AC) Uf (DC) I a
Voltage --~ Voltage----Voltage---- mA
200--33--29.5--77
200--45--41.5--20
250--46--42.6--74
250--57--53.6--22
300--60--56.5--68
300--70--66.5--23
400--86--82.5--68
400--98--94.5--19
Limit Parameters
450--100--96.5--60

Model: 300B
Maximum power per channel: No power supply
Origin: Mainland China
Certification: CE
Product Type: Vacuum tube, electron tube
Replacement: 300B
Application: tube amplifier, HIFI amplifier, DIY audio amplifier accessories