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, Feedback……24.5pF, Output……0.28Pf
Mounting……Upright
Cooling……forced air cooling
Maximum Length……215.9mm
Maximum Diameter……170.2mm
Weight……3.64kg
Maximum ratings:
DC Anode Voltage……7kV
DC Anode Current……3.5A
Anode Dissipation……6kW
Grid Dissipation……225W
Frequency……110MHz
Typical conditions
RF Power Amplifier (Cathode driven) Class C Telegraphy 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 impedance-Ω
|
1200
|
1300
|
1200
|
|
Driving impedance-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
|
|
|
|
