Power Triode. 3CX800A7 Datasheet

3CX800A7 Triode. Datasheet pdf. Equivalent

Part 3CX800A7
Description High Mu Power Triode
Feature SVETLANA TECHNICAL DATA 3CX800A7 High-Mu Power Triode he SvetlanaTM 3CX800A7 is a high performance .
Manufacture Svetlana
Datasheet
Download 3CX800A7 Datasheet




3CX800A7
SVETLANA TECHNICAL DATA
3CX800A7
High-Mu Power Triode
T he SvetlanaTM 3CX800A7 is a high performance ceramic/metal high-mu power
triode designed for use in communications and industrial service. The principal
use is as Class AB2, Class B and Class C RF amplifiers.
The Svetlana 3CX800A7 may also be operated as a pulse modulator operating at maxi-
mum plate voltages to 4500 volts. Maximum plate current is 8 amps at a pulse duration of
100 microseconds.
The Svetlana 3CX800A7 is a direct replacement for the model 3CX800A7 manufactured
in the United States.
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Characteristics
Electrical
Cathode
Heater Voltage (AC or DC)
Heater Current @ 13.5V
Amplification factor (average)
Maximum Frequency for Full Ratings:
CCS
ICAS
Interelectrode capacitances, with grid grounded:
Input
Output
Plate-Cathode
Mechanical
Cooling
Base
Socket
Anode Connector
Operating position-
Maximum dimensions:
Diameter
Length
Maximum operating temperature
Net weight (average)
Maximum ratings
DC plate voltage
Maximum-signal DC plate current
Plate Dissipation
Grid Dissipation
DC grid current
Svetlana
Svetlana Outline drawing
Oxide-coated unipotential
13.5 ± 0.6 V
1.5 A
200
Index (aligned with missing base pin)
B
J
K
350 MHz
450 MHz ANODE
26.0
6.1
0.05
pF Grid (Contact
pF outer cylindrical
pF sufaces only)
EC
A
F
D
G
Forced air
large 11 pin wafer (EIA E11-81)
11 pin E.F. Johnson #124-311-100
Svetlana AC-1
any
64 mm (2.52 in.)
67 mm ( 2.63 in)
250˚ C
.341 kg (0.75 lb.)
L
H
M
Cathode = 1,2,3,8,9,10
Grid = 4,7,11
Heater = 5,6
5
4
3
2
1
6
7
8
9
10
11
2500
600
800
4.0
60
V
mA
W
W
mA
Dimensional Data
Dim.
A
B
C
D
E
F
G
H
J
K
M
Millimeters
Inches
Min. Max.
Min. Max.
59.44 66.88
2.344 2.633
63.119 63.881
2.485 2.515
54.66 59.74
2.152 2.352
19.964 23.013
.786 .906
18.034 20.066
.710 .790
— 35.712
— 1.406
4.750 — .187 —
BASE: E11-81
(EIA DESIGNATION)
14.199 14.554
0.559 0.573
6.096
— 0.240
35.992 36.398
1.417 1.433



3CX800A7
Svetlana 3CX800A7
High-Mu Power Triode
Typical Operation, Class AB2, Grounded Grid
DC plate voltage
DC cathode voltage
Zero signal plate current
Plate current
DC grid current
Cathode input impedance
Power output
RF drivng power
Resonant load impedance
CW SSB
2200
2200
V
+8.2 +8.2 V
- 15 mA
500 313* mA
36 16 mA
54 54 ohms
750 750 W
23 23** W
2700
2700 Ohms
*Two tone **Peak
www.DataSheeCt4oUo.lcinomg Air at 25˚C
Anode*
Dissipation
Watts
Sea Level
5,000 Feet
Air Flow Pressure Drop Air Flow Pressure Drop
CFM Inches of Water CFM Inches of Water
120
400 6 0.09 7 0.10
600 11 0.20 14 0.23
800 19 0.50 23 0.57
100
Note: When cooling air inlet temperature is raised to 50˚C, flow rate
must be increased approximately 40%.
80
0.2
60
40
20
0
-20
0 0.5
Svetlana 3CX800A7
120 Typical Constant Current Characteristics
Grounded Grid
Plate Current - Amperes
100 Grid Current - Amperes
Svetlana
Svetlana 3CX800A7
Typical Constant Current Characteristics
Grounded Cathode
Plate Current - Amperes
Grid Current - Amperes
0.1
0.05
0.02
1.0 1.5
PLATE VOLTAGE - kV
5.0
4.0
0.01
2.0
3.0
2.5
2.0
1.5
1.0
0.5
0.2
0.1
0.001
2.5
80
0.2 0.1
0.05
60
5.0
4.0
0.02 3.0
40
2.5
0.01 2.0
20 1.5
1.0
0.5
0 0.2
0.1
0.001
-20
0 0.5 1.0 1.5 2.0 2.5
PLATE VOLTAGE - kV
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