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40
35
30
25
20
15
10
5
0
100
500
1000
5000
10 000
50 000
GRID 2 RECOVERY IMPEDANCE (
O)
PEAK ANODE CURRENT
300 A
RE-APPLIED ANODE VOLTAGE 1 kV
GRID 2 VOLTAGE 0 V
712.5
725
750
7100
2396B
MAXIMUM RECOVERY CHARACTERISTICS
SCHEMATIC DIAGRAM
RECOMMENDED GRID, CATHODE AND RESERVOIR HEATER CONNECTIONS
R1
=
Grid 1 series resistor. 12 W vitreous enamelled wirewound is recommended, of a total impedance to set the grid 1
drive pulse circuit.
R2
=
Grid 2 series resistor. 12 W vitreous enamelled wirewound is recommended, of an impedance to match the grid 2
drive pulse circuit.
C1,C2 7
reservoir protection capacitors with a voltage rating
5500 V;
C1 =
1000 pF low inductance (e.g. ceramic),
C2 =1 mF (e.g. polycarbonate or polypropylene).
Components R1,R2,C1 and C2 should be mounted as close to the tube as possible.
CX1599, page 4
#
e2v technologies
R2
R1
C1
C2
G2
G1
CATHODE
HEATER
SUPPLY
RESERVOIR
HEATER
SUPPLY
(VARIABLE)
GRID 2 DELAYED
WITH RESPECT TO GRID 1
GRID 2 VOLTAGE
750 V, 0.5
ms
0
NEGATIVE BIAS VOLTAGE
GRID 1 CURRENT
30 A, 1
ms
0.3
ms
GRID 1/GRID 2 DELAY
ANODE
VOLTAGE
10 ms
MAX
ANODE
8242
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