Coin Slot

Coin Slot Magazine - #054 - 1979 - August [International Arcade Museum]
melt plastic and should be unilaterally banned from
clearance behind the glass.
all pinballs!
when
There is no alternative to use of the
the
Clearance was tight
machine was new but the lightboard
No. 259 lamps where they are called for short
often has warped.
of replacing the lamp sockets.
be scraped from the glass as it is slid upwards. The
They are fine as
Sf this is the case, the ink will
glass is made more delicate if there is peeled paint
they are of the lower wattage.
to boot.
The glass will be spoiled.
If necessary,
Illumination plastics on playfield-Choose No. 47
loosen and remove the screws on the side of the
over No. 44.
Sn most cases use of a shorter lamp
cabinet or inside the lightbox that hold the light-
such
No.
as the
board to the case and move it away from the glass.
130 is a further improvement
but the filament is lower and may be visible under
The glass can be removed safely.
the edge of the plastics.
No. 55's (there's that
ing the glass, it is adviseable to remount the light-
troublesome
will cause plastics to
warp.
lamp again!)
board with greater clearance between it and the
glass.
To straighten warped plastics, heat them
carefully
Before reinstall
This will have the added benefit of spacing
the lamps further away from the ink.
under a high intensity lamp (ink side
Resetting
about Va" is usually all that is necessary. This can
away from heat) until somewhat soft, then flatten
with a metal plate and a hard, flat surface until
be accomplished by moving the screws in the mech
cool.
anism board.
Repeat process in small sections.
If you
New holes should not be necessary
in the cabinet.
leave your pinball in the direct sunlight, the heat
may be sufficient to cause the plastics to distort
One more tip will help replace lamps in recesses
as the glass acts as a greenhouse without venti
lation. Avoid this.
in the lightboard where there is no room for fingers
Plastic inserts in playfield-(Lamp below playfield
a short piece of small diameter tubing attached
to grasp the bulb.
A small piece of dowel with
surfaceJ-Maximum illumination without excessive
will make a lamp extractor.
heat is desired.
fit snugly the lamp and the dowel. Lamp removal
The best choice here are No. 51's.
The tubing should
When replacing the lamps the light socket may be
tools are commercially available and work in the
bent away for fingers to reach the bulb.
same manner.
It is a
good idea to leave them bent away somewhat to
A final note on repair of backglass damage is
remove the heat source from the plastic surface.
in order while on the topic of preservation.
If
Heat is trapped in the recesses making the problem
areas of the ink have begun to separate from the
seem worse.
glass and the pieces are still intact (just peeled
Other Applications-
technique
back) they can be readhered with some careful
-No. 455 lamps can be used to replace "Special
When Lit" lamps for a nice effect.
Purchase clear spray
The idea is to soften par
tially the affected areas and rewet the interface
Ditto for
between the paint and the glass.
"Last Ball in Play."
sections.
No.
and diligence.
enamel--NOT lacquer.
Work in small
Allow time for the softening to occur.
Do not put too much spray on at once.
1458 lamps, in case you are wondering,
If it
begins to look milky in color, stop and wait. Spray
are found in Bally 50 volt race horse games.
If I
from a distance so that the pressure of the spray
owned such a game, I would consider rewiring
doesn't peel the loose chips and blow them away.
They create an immense amount of heat.
Spray m at an angle to the glass so that the spray
.co
m
is aided in going under the paint chips. Spray
:
u
m
e
o
s
fr backglass
Since replacing lamps behind d the
from several directions may be necessary.
-mu on
e removing
e
d
d
a
some early machines involves
the
glass,
a
o
l
c
r
n
a cautionary note
is necessary.
w.a This is true for
If there is a lot of space between the paint
Dow
w
w
/
:/ pinballs from the late
Williams, United, and tp
Exhibit
chips and the glass, some mechanical assistance
t
h
the circuits to accommodate a 6 volt lamp.
40's and early 50's. Before sliding the backglass
out of the top of the Sightbox (remove the top
molding), check to insure that there is sufficient
© The International Arcade Museum
will be necessary in carefully pushing the flakes
to the glass when the chip has been softened and
the spray enamel under it has become tacky. Use
18
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