Coin Slot

Issue: 1979 August 054

Coin Slot Magazine - #054 - 1979 - August [International Arcade Museum]
With the exception of No. 1458, all lamps are
S.C. Bayonet- used in baseball and shuffle games.
6-8 volts but draw varying amounts of current.
This is a general illumination lamp
Multiply average volts by current to compute watts.
and is not normally found behind
Several base styles are used:
bac kg! asses.
Bayonet-
used in machines from late 194Q's
Screw-
Wedge-
used
by Gottlieb in early to late
to present Lamps No. 44,47,51,55,
1960's
130, 455, 1458 have the same base.
bumpers.
used in machines generally from the
2-pin-
used
mid 1930's to 1940. Lamps No. 46,
pop
50, have the same base.
pop bumpers and advance
by Williams in
bumpers
in
late
disappearing
1950's.
The chart is keyed to the bulb styles sketched to
scale below:
1
That's the basic information.
Here's the selection
nes and names can be replaced by the No. 455
scheme:
flasher lamp.
Not every lamp need be replaced
Within interchangeable series (44, 47, 51, 55
by the more expensive flasher.
130, 455) and (46, 50) choose the lowest watt
that several well placed flashers can replace double
age rating lamp and/or the lamp that provides
the amount of regular lamps. In some applications
the
(shortest
it may be necessary to cut away a small sliver of
In this way heat is both minimized
wood from around the lamp socket in order to
greatest clearance to the glass
package).
Chances are good .
get clearance for the bulb to be inserted.
and kept away from the inked glass.
The collector,
Here are examples of selections throughout the
unlike the operator, does not
depend on briliantly Sit games for the machine
machine:
to appeal to players and produce revenue.
Backglass-Choose No.
47,
No.
51
of No.
removing every
130.
other
lampx in
Lower wattage is available with the No. 47 but
areas.
You may wish to put back some.
the No. 51
rather
look
achieved.
lamp is shorter so the same effect is
cause
Recent information shows the No. 130
at a
more dimly
Try
the illumination
I would
lit machine than
light bulbs to glare through bare areas of
the glass.
lamp to be the equivalent of the No. 47 for lower
om
in the .c
m
:
u
m to be u preferred
se
With screw type bases, choose the No. 50 over
No. 51.
For this reason they
fro are
m
d
-
e
e
the No. 46. The No. 50 is a lower profile bulb.
over all others. The ad
No. 130 may
be more diffi
d
a
lo it worth
.arc it?
cult to find, o
wn isn't
w
D but
w
Pop and Advance Bumpers-ln many cases, the tall
p://w
t
t
h
er A style lamp will touch or interfere with the
Promptly remove any No. 55's and replace.
wattage
plus
the
shorter
Throw the No. 55's away!
package found
bumper cap.
They are not suitable
This causes discoloration and distor
for pinballs in any way, shape or form-too hot.
tion of the caps.
Lamps supplying constant illumination behind sce
lamps only.
© The International Arcade Museum
17
Replace with No. 51 or No. 130
No. 55 lamps will fit but will literally
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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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