Star Tech Journal

Issue: 1987-July - Vol 9 Issue 5

STAR*TECH Journal
BILATERAL TRIGGER DIACS
GENERAL DESCRIPTION:
The diac semiconductor is a full-wave or bi-
directional thyristor. It is triggered from a
blocking-to-conduction state for either polarity
of applied voltage whenever the amplitude of
applied voltage exceeds the breakover voltage
rating of the diac.
LIA!)
IJ~TI>
I Sa•
r
w
1'1tl~
IU, "AC.
Figure 1 is from the DIGI-KEY catalog,
page 37, and shows a "Diac-Triac Full-Wave
Phase Control Circuit." As Eugene points
out, this circuit is inexpensive and easy
to build. However, this circuit is
generally used as a "test circuit" and
only under resistive loads.
July ·1987 [13)
TRDUBLESHDOTINB ELECTROHONE
& WELLS &ARDNER MONITORS
A troubleshooting manual covering the
servicing of the most popular color video
monitors used in the Coin-Operated
Amusement Industry, has Just been
published by STAR*TECH JOURNAL.
Thia very thorough and detailed manual
covers every ~spect of monitor repair
including: Power Supply Section - symptoms
and solutions. CRT Construction and
Operation -brightness problems and
solutions. Deflection Circuitry -sync
circuit description end troubleshooting.
Color Problems -including degaussing,
purity, white balance and convergence
adjustments.
Troubleshooting Electrohome & Wells
Gardner Monitors is priced at $19.95 [US)
plus $2.50 shipping.
Distributed by STAR*TECH JOURNAL.
POB 1065, Merchantville, NJ 08109.
~In a BIG CHOICE crane, this circuit would
experience both resistive and inductive
load which would further limit the phase
control ability of the circuit.
For operators, which way to go still
remains a "BIG CHOICE"!
CRANE MERCHANDISE
,,,&es,
-
DIFFERENT • ONIQOE • EXCITING
IMMEDIATE DELIVERY
SAMPLE COPIES of STAR*TECH JOURNAL for
your next State Association meeting are
available. Just send us your requirements
such as: Date needed, quantity, mailing
address and to wham's attention. Send
requests to: STAR*TECH JOURNAL, PO Box
1065, Merchantville, NJ 081D9.
VOLUMES/ISSUES
Some back issues and complete volumes
remain in our inventory. Complete Volumes:
$42 [$US). Sing le Issues: $5 [$US).
*** Send self-addressed stamped [$D.39)
envelope [11D or larger) for complete
index of all articles covered since Mar79.
Availability: Complete Volumes [twelve
issues bound under one cover)s
11 [Mar79-FebBO),
12 [MarBD-FebB1),
13 [MarB1-FebB2),
14 [Mar82-Feb83).
*********••·······························
ISSUE PACKAGES O $42 [US).
Pkgf581 MayB4, JunB4, Jul84, Aug84,
\
Call Toll Free:
(800) 992-2388, (800) 992-6577 (in California)
1590 Sunland Lane, Costa Mesa, CA 92626
Nov/Dec84, Jun85, Jul85, AugB5,
Sep85, OctB5, Novas, DecB5,
pkgf781 JanBB, FebBB, MarBB, AprBB,
Mayes, JunBB, JulBB, AugBB,
SspBB, OctBB, Nov86, DecBB,
STAR*TECH Journal
July 1987 (14)
MARKETPLACE
A monthly Listing of available coin-op
sales and services seen by aver 2,DDD
amusement machine operators.
MARKETPLACE prices are •4 par Lina, (two
Lina minimum), with a maximum of 40
characters par Lina -including spaces.
DEADLINE1 The 20th of the previous month.
(Example: July 20th far the August issue.)
Call 809/882-1D8D.
Board Rapatr '39.95.
Elactrohama 607-19" monitor boards ONLY.
Yau sand us your bad board,
upon receipt we will ship a goad board
via UPS/COD ,as.es
Call 408/375-4288. K-COIN, 177 Webster St.
Monterey, CA 93940.
■•nt,or
Wtoa 7-A■p Power Sapply ees. Wica mini
tree-ball assembly new ,aa. Galaxian to
Galaga cocktail kit ,a2s. Boardwalk Casino
kit for Pac-Man ,12e. Cinamatronics World
Series parts. LDV-1000 Test Fixtures ,1s.
Cinamstronics control panels and artwork
graphics ,10 and up. Space Ace and
Dragon's Lair disc new ,20 each.
Calla Scott Edmunds, GREAT SCOTT
AMUSEMENTS, 819/484-5398.
■••
York CttJ gaming firm specializing
in consulting and purchasing far buyers
outside of continental USA. Latest games,
antique games, pinball, kite, parts &
service. Member AMOA. Rafarancas
available. Writa1 The MAYFAIR AMUSEMENT
CO. 80-41 Woodbine St., Ridgewood, NY
11385 or call 718/417-5050.
Wan,ad •••
Seaburg dame glaas, modal R. 817/479-0011.
seeks axpariancad game
technician. Laser disc axperianca a plus.
Southern California area. Salary based an
exp. Sand resume to1 NDI, 24188 B Laguna
Hills Mall, Laguna Hills, CA 92853. Phone:
714/855-S040 batwaan B:00-12:00 PST.
■ a,to ■ wtda Ftr ■
Lara• Can,ral Flortda routs
operator/distributor needs axpariancad
service person. Must have thorough
knowledge of Jukeboxes, pins and videos.
Also must ba willing to run night calls.
Salary, benefits and company car. All
replies to DEPT. RS c/o Star•Tach Journal,
PD Box 1085, Merchantville, NJ 08109.
Wan,ad1 Naa,ar ,ac• with heavy backround
in digital pinballs. Must ba able to
organize shop, build test fixtures, handle
private party field calls and 150 game
route. SalarJ plus percentage. Would Like
to become pinbail repair capital wast
coast. Hugh stack of parts.
A-AARON VENDING 2080 South St., Long
Beach, CA. 218/531-4882.
Fraa Sa ■pl••••
Quality soft-Leather golf gloves for
merchandisers. Kids Love ta 'style' with
them and-golfers will try all dayl
Satisfaction guaranteed. Individually
packaged in clear plastic envelopes.
,so/dozen. Assorted colors and sizes par
dozen. Sand orders to: Joseph B. Connor,
508 Stratford Ava., Westmont, NJ 08108.
Pinball Baokgl•••••• new and used. We
have over 1500 in stock, ,1s each. SPECIAL
this month: Wico Joystick handles, heavy &
Light duty -7 for ,10. Pacman MPU ,a5,
Galaxian MPU ,25, Donkey Kong MPU ,as,
Bally 7-digit displays -8 for ,so. Call
718/417-5D50 or write Stave Engel 80-41
Woodbine St., Ridgewood, NY 11885.
Attan,toa .lluaa,ttJ Buyara.
Warehouse full of video games and parts.
50 videos in various condition, 85 egg
vendors -soma complete, 30 color video
game monitors -many with complete
electronics. Also, power supplies,
harnesses, ate. and aver 200 Logic boards.
218/787-1833 ask for Greg. GAMES UNLIMITED
8817 Cranshaw, Los Angeles, CA 90016.
CDIIECTIDI ■ High qua Li ty, new_~
factory kits at Low prices. We buy used r '
boards and kits. Call or write for free
newsletter: "The Conversion Kit Hit
Parada", 916/878-5189 or 918/878-1318.
VIDEO CONNECTION, 980 Jaffray Lana,
Dixon, CA 95820.
The VIDEO
Nal,1-s,a,a ■ Conversion Kit.
This kit will allow the installation of
2 or 3 games in one cabinet. Excellent
for Locations with Limited space or to
add more selections in an arcade. Keep
your old games making money or simply
mix naw and old games together.
Potential to save up to 871 on taxes.
Contact your Local distributor or
PRO CIRCUITRY at 814/284-32D9.
llualttJ Harn••••• for Video Games
,1s.oo & up. Dal: 5-7 days. Spacial
harnesses upon request. Color conversion
kits for Donkey Kong, permitting use of
Monitor far normal conversion S2D.DD.
LOUISE'S HARNESS SHOP, Rt. a, Box 72,
Prattville, AL 88087. 205/885-1841.
COIi-OP NAIL LISTS
USA: Over 11,000 names of coin-operated
equipment owners, operators, technicians,
suppliers, Jobbers and distributors. •575.
EUROPE: Over 2,500 large operators and
distributors of coin-op equipment. ,aoo.
Lists are supplied
labels in zip-code
deliverable. Order
JOURNAL, POB 1085,
an pressura-sansitiva
order. Guaranteed SSI
from1 STAR*TECH
Merchantville NJ 08109.
-..._

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