The 4CX1500B is a metal-ceramic, forced air-cooled beam power tetrode with an oxide cathode. The tube operates at low voltage and large current and has low intermodulation distortion and low grid cut off voltage. The quality of low intermodulation distortion makes the tube suitable for use as radio and audio frequency linear amplifier.

 

Characteristics

Filament voltage……6V

Filament current……10A

Transconductance……30mA/V

Interelectrode capacitances (cathode grounding)

       input……81.5pF   output……11.8pF   feedback……0.02pF

Rated continuous wave, Frequencies: at most……110MHz

Operating position……any

Cooling……air forced

Air-cooled system Seat tube (recommended) ……EimacSK—800

Air-cooled pipeline (recommended)……EimacSK—806

Temperature at metal-ceramic seals……250℃

The highest working temperature on anode surface……250℃

Height: at most……124.46mm

Diameter: at most……85.6mm

Weight……770g

 

Maximum ratings

Anode voltage (DC) at most……3000V

Anode voltage (DC) at most……0.9A

Anode dissipation at most……1500W

Class AB RF linear amplifier

Anode voltage……2900V

Grid 2 voltage……225V

Anode current……0.71A

Effective output power……1100W

Class AB1 (double tube) audio frequency amplifier or modulator

Anode voltage……2900V

Grid 2 voltag……325V

Anode current……1.71A

Output power……2774W

 

Typical operation

Grid 2 dissipation at most……12W

Grid 1 dissipation at most……1W

 

	Min. value	value
A	φ84.71	φ85.60
B	φ20.50	φ20.83
C	φ47.37	φ48.26
D	57.15	58.42
E	57.53	62.61
F	87.73	92.81
G	118.74	124.46
H	24.51	25.09
J	17.53	18.03
K	10.54	11.05
L	3.56	4.18
M	0.046	0.76
N	17.78	20.32
P	7.97	8.28
R	55°	65°
S	115°	125°
T	11.94	13.46