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E2V Technologies
CX1157
(Service Type CV6241)
Hydrogen-Filled Ceramic Thyratron
The data to be read in conjunction with the Hydrogen
Thyratron Preamble.
ABRIDGED DATA
Hydrogen-filled tetrode thyratron with ceramic envelope,
featuring low jitter and low anode delay time drift. Suitable for
use at high pulse repetition rates and in applications requiring
ruggedness and compactness. A hydrogen reservoir operating
from the heater supply is incorporated.
Peak forward anode voltage .
Peak anode current
.
.
.
Average anode current
.
.
Anode heating factor .
.
.
Peak output power .
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 350
. 500
7.0 x 10
9
VApps max
.
3.5
20
kV max
A max
mA max
.
MW max
GENERAL
Electrical
Cathode (connected internally to
one end of heater) .
Cathode heater voltage
Cathode heater current
Reservoir heater voltage (see note 1) .
Reservoir heater current .
Tube heating time (minimum)
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
oxide coated
6.3
+
7
1
/
2
%
.
6.3
+
7
1
/
2
%
.
.
V
A
V
A
.
7.5
.
.
.
.
.
.
.
.
.
1.5
3.0
min
Mechanical
Seated height
Clearance required below
mounting flange .
Overall diameter
(mounting flange)
Net weight
Mounting position (see note 2) .
Tube connections
.
.
.
.
.
.
76.2 mm (3.000 inches) max
.
.
.
. 31.75 mm (1.250 inches) min
.
.
.
.
.
.
57.15 mm (2.250 inches) nom
.
284 g (10 ounces) approx
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. see outline
.
.
any
.
.
.
.
.
Cooling
Where natural cooling is insufficient to maintain the envelope
temperatures below the specified rated values, cooling by
forced-air, or by oil or coolant immersion may be used.
The temperature of the anode terminal and the base, measured
at the points indicated on the outline drawing, must not exceed
the values specified below.
Anode terminal .
.
.
.
.
Base
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
natural, forced-air or liquid
.
.
.
.
.
.
.
.
. 250
. 220
8
C max
8
C max
PULSE MODULATOR SERVICE
MAXIMUM AND MINIMUM RATINGS
(Absolute values)
Min
Max
Anode
Peak forward anode voltage
(see note 3)
Peak inverse anode voltage
(see note 4)
Peak anode current
Average anode current
Rate of rise of anode current
(see notes 5 and 6) .
Anode heating factor .
.
.
.
.
.
.
.
.
. –
20
kV
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. –
. –
. –
20
350
500
kV
A
mA
.
.
.
.
.
.
.
.
.
.
. –
. –
2500
A/
m
s
7.0 x 10
9
VApps
Grid 2
Unloaded grid 2 drive pulse voltage
(see note 7)
.
Grid 2 pulse duration .
Rate of rise of grid 2 pulse (see note 6) . 1.0
Grid 2 pulse delay
.
.
Peak inverse grid 2 voltage .
Loaded grid 2 bias voltage
(see note 8)
.
.
.
Forward impedance of
grid 2 drive circuit
.
.
.
.
.
.
.
.
.
.
.
.
.
200
. 1.0
750
V
–
– kV/
m
s
3.0
200
m
s
.
.
.
.
.
.
.
.
. 0.5
. –
m
s
V
.
.
.
.
7
50
7
200
V
.
.
.
.
.
100
1000
O
Grid 1 – DC Primed (See note 9)
DC grid 1 unloaded priming voltage
DC grid 1 priming current
.
.
75
50
150
150
V
.
.
.
mA
Grid 1 – Pulsed (See note 10)
Unloaded grid 1 drive pulse voltage
(see note 7)
.
Grid 1 pulse duration .
Rate of rise of grid 1 pulse (see note 6) . 1.0
Peak inverse grid 1 voltage .
Loaded grid 1 bias voltage
Peak grid 1 drive current .
.
.
.
.
.
.
.
.
.
.
.
.
300
. 2.0
750
V
–
– kV/
m
s
200
see note 11
0.5
m
s
.
.
.
.
.
.
.
.
.
. –
.
. 0.15
V
.
.
.
.
A
Cathode
Heater voltage
Heating time .
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 3.0
6.3
+
7
1
/
2
%
V
–
min
Reservoir
Heater voltage (see note 1) .
Heating time .
.
.
.
.
.
.
.
. 3.0
6.3
+
7
1
/
2
%
V
.
.
.
.
.
–
min
Environmental (See note 12)
Ambient temperature .
Altitude
.
.
.
.
.
.
.
.
.
.
.
7
55
. –
+130
8
C
km
.
.
.
3
–
10 000
ft
#
E2V Technologies Limited 2002
A1A-CX1157 Issue 3, September 2002
527/5626
E2V Technologies Limited, Waterhouse Lane, Chelmsford, Essex CM1 2QU England
e-mail: enquiries@e2vtechnologies.com
Internet: www.e2vtechnologies.com
Telephone: +44 (0)1245 493493
Holding Company: Redwood 2002 Limited
Facsimile: +44 (0)1245 492492
E2V Technologies Inc. 4 Westchester Plaza, PO Box 1482, Elmsford, NY10523-1482 USA Telephone: (914) 592-6050
e-mail: enquiries@e2vtechnologies.us
Facsimile: (914) 592-5148