|
High Power
Helix Traveling Wave Tubes
(TWTs)
| Prime Power Considerations |
|
Product
#
|
Cathode Volt.
kV
|
Cathode Cur. Amps
|
Grid
Drive Volt.
V
|
Grid Bias Volt.
V
|
Grid Cur.
mA
|
Heater Volt.
V
|
Heater Cur. Amps
|
1st Stage Col.
Cur. kV
|
1st Stage Col.
Cur. Amps
|
2nd Stage Col.
Volt. kV
|
2nd Stage Col.
Cur. Amps
|
| L-4920 |
40
|
14
|
1,300
|
-750
|
25.0
|
28
|
4
|
-12
|
12
|
-5
|
2
|
| L-4922 |
40
|
13
|
1,250
|
-750
|
10.0
|
28
|
4
|
0
|
12.8
|
N/A
|
N/A
|
| L-4923 |
42
|
14
|
1,200
|
-750
|
14.0
|
28
|
4
|
-9
|
10
|
-3
|
4
|
| L-4950 |
40
|
12
|
1,200
|
-750
|
10.0
|
28
|
4
|
0
|
11.8
|
N/A
|
N/A
|
| L-4966 |
40
|
14.5
|
1,400
|
-750
|
14.0
|
28
|
4
|
0
|
14.3
|
N/A
|
N/A
|
| L-4995 |
40
|
15
|
1,300
|
-750
|
14.0
|
28
|
4
|
0
|
14.8
|
N/A
|
N/A
|
| Electron Beam Focusing |
|
Product #
|
Method
|
Solenoid Volt. V
|
Solenoid Cur.Amps
|
Slenoid Resistance
Ohms
|
Max Prime Power
Watts
|
Max DC Intercept
Cur.
mA
|
Max RF Intercept
Cur.
mA
|
Coolant
|
| L-4920 |
INTEGRAL
|
72
|
13
|
5
|
1200.0
|
250
|
1250
|
WATER
|
| L-4922 |
INTEGRAL
|
80
|
13
|
4.5
|
1100.0
|
200
|
400
|
WATER
|
| L-4923 |
EXTERNAL
|
20
|
20
|
N/A
|
500.0
|
100
|
200
|
WATER
|
| L-4950 |
INTEGRAL
|
50
|
13
|
5
|
1000.0
|
200
|
500
|
WATER
|
| L-4966 |
INTEGRAL
|
80
|
13
|
4.5
|
1100.0
|
100
|
150
|
WATER
|
| L-4995 |
INTEGRAL
|
80
|
13
|
4.5
|
1100.0
|
100
|
350
|
WATER
|
| ExtendedRF Parameters |
|
Product #
|
Small
Signal
Gain
dB
|
AM
Noise
dB
|
PM
Noise
dB
|
Noise
Poer
Output
dBm/MHz
|
2nd
Harm.
dBc
|
Insertion
Loss
dB
|
Max RF Intercept
Cur.
mA
|
Coolant
|
| L-4920 |
40
|
-80
|
-80
|
-107
|
-26
|
90.0
|
2000
|
25
|
| L-4922 |
40
|
-80
|
-80
|
-107
|
-26
|
90.0
|
70
|
5
|
| L-4923 |
40
|
-80
|
-80
|
-107
|
-26
|
90.0
|
2000
|
2
|
| L-4950 |
40
|
-80
|
-80
|
-107
|
-26
|
90.0
|
500
|
2
|
| L-4966 |
40
|
-80
|
-80
|
-107
|
-26
|
90.0
|
70
|
5
|
| L-4995 |
40
|
-80
|
-80
|
-107
|
-26
|
90.0
|
300
|
10
|
| Physical Description |
|
Product #
|
RF
Input
Con.
|
RF
Output
Conf.
|
Overall
Length
inches
|
Body
Diameter
inches
|
Weight
lbs
|
RF
Output
Press.
psia
|
Coolant
con.
|
| L-4920 |
SC
|
3-1/8 Coax
|
140
|
12
|
350
|
15
|
Quick
Disconnect
|
| L-4922 |
N
|
WR650
|
76
|
10
|
240
|
20
|
Quick
Disconnect
|
| L-4923 |
N
|
WR650 -Half Height
|
68
|
9
|
110
|
15
|
Quick
Disconnect
|
| L-4950 |
N
|
WR284
|
55
|
10
|
120
|
20
|
Quick
Disconnect
|
| L-4966 |
SC
|
WR650
|
76
|
10
|
240
|
25
|
Quick
Disconnect
|
| L-4995 |
SC
|
WR975-Half Height
|
76
|
10
|
235
|
25
|
Quick
Disconnect
|
These specifications have been
released into the public domain in accordance with International
Traffic in Arms Regulations (ITAR 22 CFR 120.11 (6)
Design Notes:
1. All tubes are control grid modulated and also incorporate
a shadow grid to assist in the suppression of grid emission
and grid intercept current.
2. All L-3 Electron Devices' TWTs are inherently capable of
dual-stage collector depression should it be necessary to
fulfill a particular system requirement.
3. A mod anode connection is provided on all TWTs and may
be utilized to accommodate system sensing circuits and also
reduce the potential damage incurrred by cathode-to-anode
high-voltage arcs. This protection is accomplished through
the incorporation of an external anode-to-ground resistance
of two kilohms.
4. All cathode and collector voltages are referenced to ground.
For
more information - contact us
(Williamsport, PA)
|
