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Welcome to Queenway store!

    About the products details, there we carefully tell you: these specifics produced by AliExpress system, some of these are not correct or even wrong. So the correct products specifics is from the detailed description. Usually the description has some pictures and much words. And if you are in 110V rear. Please notice the items input voltage. As we can not mark it on few items.

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Brand New PSVANE  300B  Vacuum Tube

 

300B is directly-heated type cathode triode, used as class A1. In audio amplifier it suits for the condition that the output power is 10W.

 

 

Heater

Uf(DC)………………5V 

If(DC) …………… 1.2A 

 

Maximum Rating

 

Ua……………480V 

Pa………40W 

 

Ik

with cathode bias………………100 mA 

with fixed bias……………70 mA

 

Direct Interelectrode Capacitances

input……………9PF 

output……………4.3PF 

grid to plate……………15PF

 

Static parameter

 

 

Ua……………………300V 

-Ug………………… 60V 

Ia……………………60mA 

Gm……………………5.5mA/V 

ri……………………0.7 KΩ 

u ……………………3.85 

Pout…………………6.6W