Tektronix 5440 Instruction Manual page 89

OPTION 76
Ρ7 PH OSPH OR
Optio
n
7 6-5440
T
h
e pur
p
ose of OPTION 76 is to p rovide α cat
h ode-ray t ub e wit
h
Ρ 7
ph
osp
h
or, w
h
ic
h
is excellent for
long-persiste
n ce display requireme
n
ts . T
h e Tektronix part
nu
mber for t
h
e tu
b e is listed in t
h
e R eplacea
b
le
E
lectrical
P arts (see
V
400) .
(a) S
EP
1978
Op
tio
n
76, page 1