Shuguang 572B hi-end vacuum valve tubes matched Quad(4) for Amplifier

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Direct thermal cathode high μ transistor 572B for oscillation and power amplification in radios.

Filament heating
Uf.................. 6.3 V
If.................. 4 A

Limit rating
Anode voltage.................. 1250 V
Anode current at maximum signal............... 210 mA
Anode diffusion power ...... .................. 125 W
Gate current.................. 50 mA

Interelectrode capacitance
Input capacitance.................. 6 PF
Output capacitance.................. 0.9 PF
Cross-channel capacitance.................. 5.9 PF

Static parameter
Ua.................. 2000 V
-Ug.................. 2 V
La.................. 32 mA
μ (when Ia=20mA).................. 190