Star Tech Journal

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STAR*TECH Joumal
!!!!I!!:111~/
November 7991
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11
Vic Fortenbach • United Artists• Palm Springs, California
Pinball Redemption
One type of game that has not been "merged"' into the redemption arena is pinball.
Adding a ticket dispenser to a pinball game can be done several ways.
The most flexible way to dispense
tickets from a pinball game is to
purchase the pinball ticket dis-
penser kit from Deltronic Labs.
This ticket kit comes complete
with a driver/interface board, DL-
1275 ticket dispenser, power sup-
ply, ticket bin and other associ-
ated items.
The pinball ticket kit can be set,
via dip switches for a cornucopia
of settings. For example, if the kit
is connected to a thumper bumper
coil and set appropriately, the pin-
ball game would vend 2 tickets
every 9th time the thumper
bumper was hit by the ball. This
kit can also be connected to a lamp
instead of a playfield coil. Contact
Deltronic Labs for more informa-
tion.
Another way of adding tickets to
pinball games was suggested by
Dick Garner and Terry Wolfe of
MR Rentals in Lebanon, OR.
What they have done is to adapt a
ticket dispenser to the spinner, in
this case a Williams F-14 pinball
was used.
The original scoring switch on the
spinner was disabled and new
wires connected to the spinner
switch. These wires were routed
to the front of the game and con-
nected to a modified Clever De-
vices TVM-1 ticket dispenser.
A relay circuit was created (see
drawing) and the dispenser modi-
fied. . The modification to the
ticket dispenser made the "notch"
output go high instead of going
low when a ticket notch was
sensed.
There are 3 ways of altering the
ticket dispenser for use with the
relay circuit shown, change the IR
detector on the dispenser board so
the output is inverted (Clever De-
vices will help you on this one!),
use a transistor to form an in-
verter, or piggyback a 74C14 I.C.
inverter chip to the dispenser
board. Any of the above ways will
work equality well.
The relay circuit shown makes a
standard ticket dispenser into a
one-pulse-one-ticket type dis-
penser. If you don't have any
standard ticket dispensers
around the shop, you might con-
sider purchasing a DL-4PS dis-
penser from Deltronics or the
CC2000 ticket dispenser from
Coin Controls, both of these dis-
pensers are one-pulse-one-ticket.
Using either of the above dispens-
ers will eliminate the relay circuit
shown.
(
How IT WORKS
)
When the ball hits and spins the
spinner, the switch contacts open
and close repeatedly, since the
ticket dispenser takes about 1/2 a
second to vend a single ticket, the
pulses are too fast for the dis-
penser is "see" each one, so the
dispenser ignores about every 5
pulses and vends a ticket on the
sixth one. This feature makes the
number of tickets vended to how
hard the spinner was hit.
~
If your pinball game does not in-
clude a spinner on its playfield,
try connecting this circuit to a
lamp, but be sure to check with
the games manufacturer to be
sure that the lamp driver circuit
will drive a ticket dispenser and/
or relay.
Thanks again to Dick Gamer and
Terry Wolfe from MR Rentals for
their assistance in writing this !""-
article.
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