Specification :

The 3CX15, 000 A7 is a high-mu power triode
intended for use as a zero bias Class B RF amplifier
or Class C power amplifier or oscillator. It is
also recommended for use as a grounded grid FM
amplifier. Class B operation with zero bias offers
circuit simplicity. In addition, grounded grid operation
is attractive since a power gain as high as
twenty times can be obtained.
Characteristics:
Plate Dissipation ( Max.) 15, 000 Watts
Screen Dissipation ( Max.) ---
Grid Dissipation ( Max.) 500 Watts
Frequency for Max. rating ( CW) 110 MHz
Amplification Factor 200
Filament/ Cathode Thoriated Tungsten
Voltage 6.3 Volts
Current 160 Amps