The YU-148 (3CX6000A7) is a forced air-cooled high-power metal ceramic triode with a thoriated-tungsten cathode. When operated at a frequency of 108MHz, the anode dissipation power is 6kW, and the grid dissipation power is 225W. It is mainly used as an oscillator in industrial heating equipment or amplifier and modulator in radio equipment.

 

Specifications:

Filament Voltage……7.0±0.35V

Filament Current (at 7V)……78±3A

Amplification Factor (average)……200

Interelectrode Capacitances (Grounded-cathode)

Input……42pF   Transfer……24.5pF   Output……0.28Pf

Installation method……Vertical, base up or down

Cooling……forced air cooling

Maximum Length……215.9mm

Maximum Diameter……170.2mm

Weight……3.64kg

 

Extreme conditions

DC Anode Voltage……7kV

DC Anode Current……3.5A

Anode Dissipation power……6kW

Grid Dissipation power……225W

Frequency……110MHz

 

Typical conditions

RF Power Amplifier (Cathode driven) Class C Telegraph or FM (108MHz)

Anode Voltage-V	4800	5700	6000
Grid Voltage-V	0	0	-100
Anode Current-A	2.30	2.50	2.56
Grid Current-A	0.32	0.33	0.48
Peak RF Cathode Voltage-V	215	224	340
Cathode Dissipation-W	3200	4100	3900
Effective output power-W	8000	10000	12000
Driving power-W	500	600	800
Load resistance-Ω	1200	1300	1200
Driving Resistance-Ω	50	49	77

 

Dimensions
	Min. Value	Value		Min. Value	Value
A	φ152.4	φ155.58	J	9.5	11.1
B	φ19.84	φ21.44	K	98.4	107.9
C		φ92.1	L		84.5
D	φ15.6	φ16.1	M	17.5	20.6
E	φ37.8	φ38.4	P	203.2	228.6
F	φ75.9	φ76.4	R		65.1
G	20.5	23.8	S	25.4	28.6
H	34.9	41.3