Hello visitors and buyers,

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.

    About the international shipping/transportation fee, if the shipping fee is expensive, please contact us. Sometimes we can find few cheaper shipping way and we will 100% reply to you! Please carefully check the packing/box/parcel when the sender delivery. .

Brand New PSVANE 274B-TII Vacuum Tube

 

Glass shell eight feet directly heated full-wave rectifier，274B is very similar with 5U4G and 5Z3P, which can be replaced by each other.

Heater

 

Uf………………5V 

If…………… 2.5A

 

 Maximum Rating

 

anode inverse peak voltage……………1550V 

anode peak current        ………750mA

 

 

 

Recommend working condition

 

 Anode supply voltage             2×500V

 

Each arm impedance               75Ω

 

load impedance                   2000Ω

 

Filter capacitor                 4μF

 

Rectifier current                ≧220mA