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1K
L
A
C
1B
SEE NOTE 3
F
SEE NOTE 2
SEE NOTE 1
GRID 2 LEAD (WHITE)
H LONG, TAG TO SUIT
1J
GRID 1 LEAD (GREEN)
H LONG, TAG TO SUIT
1J
3 HOLES
1G
EQUISPACED ON E PCD
CATHODE HEATER LEADS (YELLOW)
H LONG, TAGS TO SUIT
1J
1D
4900B
OUTLINE
(All dimensions without limits are nominal)
Ref
Millimetres
Inches
A
304.8 max
12.000 max
B
84.12 max
3.312 max
C
215.9
+ 13.0
8.500
+ 0.512
D
111.1
4.375
E
95.25
3.750
F
1.6
0.063
G
6.5
0.256
H
381.0
15.000
J
6.35
0.250
K
14.38
+ 0.18
0.566
+ 0.007
L
12.70 min
0.500 min
Inch dimensions have been derived from millimetres.
Outline Notes
1. The recommended hole in the mounting plate is
76 mm (3.0 inches) diameter.
2. A minimum clearance of 44.45 mm (1.750 inches)
must be allowed below the mounting surface.
3. The mounting flange is the cathode connection,
and this is connected internally to the mid-point
of the heater.
#
E2V Technologies
CX1622, page 3