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COMMON
BOTTOM VIEW TYPE 3
FIG,3,9
18
3.
_ n ; ' :
Module Type 3
.. This Is
the first Electronic Module designed
specifically for the 384 Slrutter in the Model
3S0Camer.l(Figs. 3-8,3-9).
The
Type 31s hand
assembled and yirtually identical to Type 2.
The difference is the addition of resistor, R9
39 ohms - electrically ps,allello polentiometer
RJ. This
rcslstor, used with • three (3) yolt
power
source, reduces the resistance of Rl.
thus pennitting more
c"monl
now
througb the
transistors.
b.
This
ciJ<:uit change .... brougbt aboul
by usbrg
alifty_en
(51) ohm
magnet coil in some
Shutters,
particularly the
366
in the Model 100
and 200 Series and in the 384 Slrutters of the
Model 300 Series Cam .....
In summary,
th....
are tbre.
(3)
cbaRges from
the original Type 1.
The
transistors are differ
ent,
changed from
the melallic can type
.as.,
10 a plastic encapsulated package - . TO 92
size; and both
C-S
and R9 are added.
In this
case, as in Type 2, Electrical Values and
I'Iut
Numbers are the same except as noted
(Fip. 3-10, 3-11).
FU,SH
SOCKE T
VIEW MODULE TYPE NO.3
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