4D32
Beam Power Pentode

Characteristics

Heater or Filament Voltage . 6.3 volts
Heater or Filament Current . 3.75 amperes
EIA Base . . . . . . . . . . F26
Prefered Substitutes . . . . None
Substitutes. . . . . . . . . None
For Characteristics and Typical Operation, See 4D22

 

Capacitances and Design Maximum Values

Section. . . . . . . . . Pentode
Cin. . . . . . . . . . . . 28 pf
Cout . . . . . . . . . . . 13 pf
Cgp. . . . . . . . . . . . 0.27 pf
Plate Dissipation. . . . . 50 watts
Screen Dissipation . . . . 14 watts
Maximum Plate Voltage. . . 750 volts
Maximum Screen Voltage . . 350 volts
Full Frequency . . . . . . 60 MHz

 

 4D22
Beam Power Pentode

Characteristics

Heater or Filament Voltage . 12.6/25.2 volts
Heater or Filament Current . 1.6/0.8 amperes
EIA Base . . . . . . . . . . F26
Prefered Substitutes . . . . None
Substitutes. . . . . . . . . None

Capacitances and Design Maximum Values

Section. . . . . . . . . Pentode
Cin. . . . . . . . . . . . 28 pf
Cout . . . . . . . . . . . 13 pf
Cgp. . . . . . . . . . . . 0.27 pf
Plate Dissipation. . . . . 50 watts
Screen Dissipation . . . . 14 watts
Maximum Plate Voltage. . . 750 volts
Maximum Screen Voltage . . 350 volts
Full Frequency . . . . . . 60 MHz

Typical Operation

as a Transmitting Tube

              Class of Service           Vp    Vs    Vsup  Vg      Ip        Is       Ig Drive    Zl    Po      
              Class C Amp               750   300     -  -100      240       26       12   1.5     -   135
              Class C Amp               600   300     -  -100      215       30       10  1.25     -   100
              Class C Mod Amp (Plate)   600     -     -  -100      220       28       10  1.25     -   100
              Class C Mod Amp (Plate)   550     -     -  -100      175       17        6   0.6     -    70
              PP Class AB2 Amp          600   250     -   -25      100       26        -  0.45    3K   125

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