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> Eimac 3CPX800A7
Eimac 3CPX800A7
All Numbers on tube: 3CPX800A7,0121; stamped code: sr# - SELE0065; 06980. Tube will not be DOA.
************ It is well advised to allow tubes to operate in standby mode (filaments on, no transmit) for 2-3 hours before tune-up. (Gettering the Tube)******
The 3CPX800A7 is a compact high-mu power triode intended for use in zero bias Class B amplifiers in pulsed radio frequency applications. It may also be used as a pulse modulator or regulator. A single 3CPX800A7 will deliver 6 kW peak output in drive-pulsed RF service. This device is also recommended for FM broadcast service at 108MHz, with typical output power of 800W.
Plate Dissipation (Max.) 800 Watts Screen Dissipation (Max.) - Grid Dissipation (Max.) 4 Watts
Frequency for Max. rating (CW) 350 MHz Amplification Factor 200 Filament/Cathode Oxide Coated
Voltage 13.5 Volts Current 1.5 Amps
Capacitance Grounded Grid Input 26.0 pf Output 6.1 pf Feedthrough 0.5 pf
Cooling Forced Air Base Large Wafer 11 pin Air Socket SK-1900 Air Chimney SK-1906
Boiler Length 2.52 in; 64.01 mm Diameter 2.53 in; 64.26 mm Weight 12 oz; 340 gm
Additional info -3cx/3cpx differences:
3CPX800A7 3400 VDC 3100 VDC - lower drive current
