WE212

Heater

Uf………………14V
If…………… 6A


Static Parameter
Ua……………………1500V
-Ug………………… 57V
Ia……………………170mA
u……………………16
RI………………… 1.9K
S……………………8.5mA/V

Maximum Rating
Maxlmum Ratings
Max.direct plate voltage                             3000V
Max.direct plate current                             350mA
Max.plate dissipation                                140W
Max.direct grid current                              75mA
Max.plate voltage for frequencies between 1.5Mc      1000V

Direct Interelectrode Capacitances
Grid to plate ……………18.8PF
Grid to filament ……………14.9PF
Plate to filament……………8.6PF

Class A Audio Amplifler or Modulator
Direct plate voltage                     1500V         1250V
Grid bias                                       - 57V          -40V
Direct plate current                     170mA         200mA
Plate dissipation                        140W         140W
Load impedance                           5000Ω         3000Ω
Undistorted output                       35W            30W

Grid Bias Modulator
Direct plate voltage                         3000V
Grid bias                                           -260V
Plate dissipation                             100W
Load impedance                             8000Ω
Pead power output                          120W

Class B Audio Amplifler or Modulator for balanced 2 tube circuit
Direct plate voltage                     2000V        1500V
Grid bias                                      -105V        -75V
Direct plate current per tube
No drive                                            40mA         50mA
Max.drive                                           300mA        300mA
Plate dissipation                           135W         135W
Load res.plate-to-plate                 8000Ω      5900Ω
Recommended power for driving stage     50W          50W

Class B Radio-Frequency Amplifler
Direct plate voltage                                 2000V        1500V
Direct plate current                                 300mA        300mA
Plate dissipation                                    140W         140W
Grid bias                                                   -120V          -90V
Approx.carrier watts for use with 100% modulation    200W          150W

Class C Radiou-Frequency Oscillator Or Power Amplifler-Unmodulated
Direct plate voltage                                 2000V         1500V
Direct plate current                                 300mA        300mA
Grid bias                                          -185—-250V  -150—-200V
Nominal power output                           400W        300W

Class C Radio-Frequency Amplifler-Plate Modulated
Direct plate voltage                                                            1500V        1000V
Direct plate current                                                             300mA        300mA
Grid bias                                                                               -200V        -125V
Max.direct grid current                                                        75mA         75mA
Nominal crrrier power output for use with 100%         300W         200W