5U4G is glass- shell, 8-pin socket, directly heated full-wave rectifier tube，5U4G is very similar with 274B and 5Z3P, which can be replaced by each other.
Heater
Uf……………5V
If…………… 3A
Maximum Rating
anode inverse peak voltage……1550V
anode peak current ………675mA
Recommend operating condition
Anode supply voltage 2×500V
Each arm impedance 75Ω
load impedance 2000Ω
Filter capacitor 4μF
Rectifier current aprox. 230mA
Avis
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