Acoustic Guitar Amplifiers & Preamps / Preamps
Direct-heated cathode medium power triode, used for class A1 amplification. In audio amplifiers, it is suitable for applications requiring an output power of 10W.
Extreme Rating
Anode voltage 480V
Anode power dissipation 40W
Cathode current
Self-biased 100 mA
Fixed bias 70 mA
Interelectrode capacitance
Input capacity 9PF
Output capacitor 4.3PF
Inter-circuit capacitance 15PF
Static parameters
Ua300V
-Ug 60V
Current 60 mA
Voltage range 5.5 mA/V
Ri0.7 K
3.85
Water output 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