Basic HTML Version
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FLIPPERS: A CLOSER LOOK
Your game has two flippers. A player controls the flippers
by pressing the two flipper buttons located on either side of
the lower cabinet.
The flippers in
A TLANTIS
are the new
WILLIAMS
ELECTRONICS
type. These incorporate the
WILLIAMS
ELECTRONICS
50-volt, parallel windings.
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FLIPPER SOLENOID OPERATION
Your flipper solenoids are parallel wound. To energize
these solenoids, the game presents ground to them. Each
solenoid contains two coils: One is the low resistance or
pull-up coil. The other is the high-resistance coil. To raise
the flipper bat, the cabinet flipper switch presents ground to
both coils. Initially the End-of-Stroke switch (EOS) is closed.
During EOS closure, the pullup coil and holding coil are
wired in parallel.
When the flipper bat reaches the end of its stroke, the EOS
opens. This action drops the pullup coil out of the circuit.
Now the current must flow through just the high-resistance
coil. Of course, the double coil has significantly more power
than the holding coil alone.
However holding up the flipper doesn't require as much
strength as raising it. Furthermore the single coil runs much
cooler than the combination. (In fact the combination is only
intended for momentary duty.)
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