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274B Tube Replaces 274B/5Z3P/5AR4/5U4G Vacuum Tubes to Precisely Match amplifiers(2 pcs)
274B Tube Replaces 274B/5Z3P/5AR4/5U4G Vacuum Tubes to Precisely Match amplifiers(2 pcs)
Preamps
Quantity
-
Detail
Preamps
A274B
Filament Heating
Voltage input....5V
If ...............2A
Restrict Rating
Anode reverse voltage peak...............1550V
Peak anode current.........750mA
Recommended operating conditions
Anode power supply voltage 2×500V
Impedance per arm 75
Load impedance 2000
Filter capacitor 4F
Rectification current 220mA -
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