pinballmedic Coin-Op Solid State Electronic Parts and Parts Kits for Pinball and Video Arcade Games. Electrical and circuit components

SEMICONDUCTORS, CAPACITORS, BULBS, SCREWS & MISCELLANEOUSE HARDWARE

PART NUMBER	PART PRICE	DISCRIPTION	TYPICAL COIN-OP GAME USE	COMMENTS
TRANSISTORS
TIP122	$2.50 each	5 A Darlington (npn) Data Sheet	(Pin) - Used in Stern and Bally Pinball games on Solenoid Driver board (1972-1980's). Coil driver transistor.	Change out the pre-driver transistors and Solenoid coil diode(s) when replacing this part. See 2N4401, 2N4403 & 1N4006 parts.
TIP102 (SE9302)	$2.50 each	8 A Darlington (npn) Data Sheet	(Pin) - Used in all Pinball manufacturer's games on Solenoid Driver board (1972-1990's). Coil driver transistor.	Carries more current, is pin compatible and a substitute for the tip122. Change out the pre-driver transistor(s) and Solenoid coil diode(s) when replacing this part. See 2N4401, 2N4403 & 1N4006 parts.
TIP36C	$3.50 each	15 A (pnp) Data Sheet	(Pin) - High power driver transistor for Flippers, VUK, Ball Shooter and other high current coils.	Replace the Driver, Pre-Driver transistors and the Solenoid coil diode(s) when replacing this transistor. See 2N4401, 2N4403, tip102 and 1N4006 parts.
TIP42C	$1.50 each	6 A (pnp) Data Sheet	Used on Gottlieb System 1 and old SS Bally power supply boards.	This part is used as a series pass transistor in the regulator circuit of the high voltage display voltage power supply circuit.
2N4401	8 for $2	Low power pre-driver transistor Data Sheet	(Pin,Vid) - Used on most sold state games.	Used in arcade games as a pre-driver transistor. Replace the 2N4401 and the driver transistor (TIP 120 or TIP122) at the same time.
2N4403	8 for $2	Low power pre-driver transistor Data Sheet	(Pin,Vid) - Used on most sold state games.	Used in arcade games as a pre-driver transistor. Replace the 2N4403 and the driver transistor (TIP 120 or TIP122) at the same time.
2N3904	4 for $2	Driver transistor Data Sheet	(Pin,Vid) - Used on most sold state games.	General purpose low power driver or pre-driver transistor.
2N3906	4 for $2	Driver transistor Data Sheet	(Pin,Vid) - Used on most sold state games.	General purpose low power driver or pre-driver transistor.
LM323K Limited Quantities in Inventory	$4 each	5 Volt 3 amp voltage regulator IC in a power transistor case.	(Pin,Vid) - Used to regulate the +5 volt power supply.	General purpose voltage regulator used to regulate the main 5 volt logic power supply in older Solid State Williams and Bally pinballs and some video games. This regulator IC has a high drop out voltage (game may reset if the line voltage gets too low) and over heats often. Use new heat sink compound when replacing and measure each wire lug to the metal heat sink to insure there is not a short when replacing this regulator. This regulator is one of the usual suspects when the game resets in the middle of a game (Also check for bad large electrolytic capacitors (see 15,000uF cap below) on the power supply board, battery acid damage to the MPU board and low line voltage to the pinball)
PART NUMBER	PART PRICE	DISCRIPTION	TYPICAL COIN-OP GAME USE	COMMENTS
DIODES	Return to Component Index
BYV 26D (1N4006)	4 for $1	800 Volt 1 A Ultra Fast Recovery diode replaces 1n4001-1n4006 diodes Data Sheet	(Pin) - Solenoid Coils, Switch Matrix, Anti-Inductive Kick Back Prevention, Power Supplies (Vid) - Coin-Lockout Coils, Power Supplies	Stock coil diodes are rated 50 Volt at 1 A (1N4001). These over-stressed diodes can short or become non-conductive at any time. It has been known for a new, out of the box coil to have defective or improperly (reversed polarity) installed diodes on them. A faulty coil diode can cause pre-driver, driver power transistor and I/O chip destruction due to the "kick back" high voltage effect of the solenoid coil. The BYV 26D is rated much higher in Voltage and lasts much longer then a stock coil diode part. It can be used on both solenoid coils and the switch matrix circuits inside a pinball game. The BYV 26D is an Ultra Fast Recovery (fast switching) diode. The Ultra Fast switching time of this diode results in quick clamping and a greatly reduced inductive high voltage "kick back" (spike) when a solenoid coil is de-energized. The BYV 26D can protect the game's electronics better then the original 1n4001 coil diode. Except for the new style flipper coils (1990-), most of the older series flipper coils require two diodes per coil.
1N914	10 for $1	50 Volt 100mA low power signal diode Data Sheet	(Pin) - Playfield Switches as switch isolator (Vid) - Joy / Control Switch isolation	If defective - can cause two or more playfield switches to appear always activated or activate at the same time (phantom switches). The BYV 26D can be use as a substitute for the 1n914 diode.
Integrated Circuits & Chips (IC)	Return to Component Index
555 Timer/OSC. IC	$1 each	Timer / Osc. Data Sheet	(Pin) - Blanking circuit on early MPU boards (Vid) - Oscillator / Timer	Can cause Williams pinball machine's MPU to 'lock-up' or not power on reset. Can indirectly cause displays to flicker or not operate on System 11 and Data East pinball games.
AMD-2901 Bit-Slice Processor Limited Quantities in Inventory 40 pin DIP photo coming soon.	$3 each	Bit-Slice Processor 40 pin DIP	(Vid) - Used mainly in Atari Vector Arcade games	Used on the "math box" board inside most Atari X-Y B&W Vector games (Red Baron, BattleZone) to calculate graphic vectors. Can cause "Math Box" board failures (Check also the Bipolar roms or their sockets ).
PROM CHIPS NOS,Erased and New large sized (27c1001 & up) in Inventory	See PROM programming page. Only sold as replacements on game rom programming orders	Game Program and Data storage chips.	(Pin,Vid) - Used to store game programming and operation data.	Pinball Medic Amusements can program ("Burn") most pinball game ROM / PROM chips. Only sold as replacements on game rom programming orders.
74LS LOGIC	Most chips $1 each	General logic and address/data line driver ICs.	(Pin,Vid) - Used as "Glue Logic" in all solid state arcade games.	The LS family of logic chips is what is used in most video, pinball machine and arcade games. These DIP packaged logic devices are NOS.
PART NUMBER	PART PRICE	DISCRIPTION	TYPICAL COIN-OP GAME USE	COMMENTS
CAPACITORS	Return to Component index
15,000 uF at 35 Volts, High Temp 105 degrees C. Radial Leads	$4 each	Power Supply Voltage Filter capacitor	(Pin) - Used on most Solid State pinballs from the 1970 - 1990's. Five are used on the Williams system 11 power supply and driver board. (Vid) - Power Supply or MPU boards	Number one cause of pinball game resetting during game play or not powering on (fuses and battery acid damage are also likely causes). Most of these capacitors are 20 plus years old and have to be replaced. This capacitor can be used to substitute for 10,000 to 20,000 uF capacitors on Power Supply boards. Most older Bally, Williams, Stern and Data East power supply boards have at least one large capacitor on the +5 volt power line. Use this capacitor to replace the leaky one on your old power supply board. See Tech Tips for more info.
100 uf at 250 Volts Axial Leads	$4 each out of stock We can't find a reliable source for these. Stay tuned for more info.	High Voltage (HV) Power Supply Filter capacitor	(Pin) - Digital Display power supply on early solid state Bally and Stern pinball machines.	The high voltage capacitor can cause the high voltage display power supply to short or destruction of the H.V. regulator's pass transistor and circuit board damage (if leaking). Age usually is the issue with this capacitor.
.22 Farad 5.5 Volt Memory Capacitor Gold Foil Memory capacitors are the diameter of a dime and are about a quarter of an inch in width. A photo of our battery replacement board that uses this special capacitor is coming soon.	See Part Comments. This special capacitor is not sold without being installed on a battery replacement board.	Used on our Battery Back-Up Eliminator Board. This capacitor never needs replacing and will not leak like a battery can. See comments for more info.	(Pin,Vid) - Can be used to replace the batteries on MPU boards for powered off RAM memory data retention. The battery backed-up memory typically holds game audits, status and 'high score to date' data. A pinball machine and some video games will boot to "audits mode" or can "lock-up" if the batteries are faulty.	Batteries can leak and destroy circuit boards, a very common problem. A memory capacitor will never leak and never needs replacing. This part is only sold installed on a Pinball Medic's Battery Eliminator Board or as a replacement component on mailed in or repair shop board work. See Board Repair or Parts pages. A diode on the MPU board usually has to be jumpered out to use a memory capacitor instead of the batteries. This is an easy to do process and the battery eliminator board comes with detailed instructions.
LAMPS & LIGHT BULBS	Return to Component Index				See this bulb chartnbsp; for photos and more info on the following lamps
#47 Prices on the other types of bulbs we sale are coming soon.	$2.00 Box of 10	General purpose small Bayonet base light bulb. 6.3V .15A Note - The #44 bulb draws .250A	(Pin,Vid,GG) - Used to replace the hotter running, but slightly brighter #44 bulb in pinballs. Helps to preserve backglass (score board glass) artwork and to prevent or stop the warping of playfield plastics. Also helps with stopping old pop bumper cap melting due to excessive bulb heat build-up.	Pinball Medic's recommended replacement bulb for the #44. #47 light bulbs help to preserve playfield plastics, pop bumper tops, playfield inserts (stay-on EM pinball inserts) and scoreboard glass artwork. Forty or more light bulbs can be used on any given playfield. Changing out the #44 lamps will help to keep General Illumination circuit connectors from over heating and burning up when used in a solid state pinball. See Tech Tips for more insight on replacing the stock #44 bulb.
#89	Box of 10	Large Flasher Lamps Medium Bayonet base. 13V .58A	(Pin) - Used on modern pinballs for flash effect.	Williams pinballs use 18 volts to flash all flasher light bulbs. Vibration and continuous use can produce shortened life spans for flash type bulbs.
#555	Box of 10	Flasher Lamps Small wedge base. 6.3V .25A	(Pin) - Used on modern pinballs for flash effect. Smaller sized then the #906 bulb and is usually used for inserts under the playfield or sometimes under playfield plastics for flash.	Vibration and long time use can produce shortened life spans for flash type bulbs.
#906	Box of 10	Large Flasher Lamps Wedge base 13V	(Pin) - Used on modern pinballs for flash effect. Larger sized then the #555 bulb.	Williams pinballs use 18 volts to flash all flasher light bulbs. The 906 bulb is brighter, larger and has a different bulb base then the #555 bulb. It also produces more heat.
PART NUMBER	PART PRICE	DISCRIPTION	TYPICAL COIN-OP GAME USE	COMMENTS
MISC. HARDWARE	Return to Component Index
#6-32 THREADED METAL SCREWS	$1 Box of 8	Lock washer is attached to the bottom of the screw head. Use a Philips screw driver or square head nut driver for installation.	(Pin) - Used on older Solid State pinballs to mount circuit boards to the backbox.	All older solid state pinballs have corroded circuit board mounting screws. These screws can provide the only path to ground for the MPU, Solenoid Driver, Sound and Display driver boards. Gottlieb, Williams, Bally and Data East, Stern pinball circuit boards all suffer from badly designed ground paths. A rusty or missing screw can cause hum on the sound amplifier, weak solenoids and game resets. Battery acid damage can easily cause these important screws to rust and not make a good ground to circuit board connection.
#8-32 THREADED METAL SCREWS	$1 Box of 6	Captured Lock washer and flat washer is installed below screw head. Can use a flat headed screw driver or square headed driver for installation.	(Pin) - Used on older Solid State pinballs to mount circuit boards to backbox.	All old solid state pinballs have corroded circuit board mounting screws. These screws can provide the only path to ground for MPU, Solenoid Driver, Sound and Display driver boards. A rusty or missing screw can cause hum on the sound amplifier, weak solenoids and game resets. Battery acid damage can easily cause these important screws to rust and not make a good ground connection for the board. These replacement screws come with a captured lock washer and flat washer and are very easy to install.
PLAYFIELD CONSUMABLE PARTS
LASER BRAND POLISHED PINBALL GAME BALLS See Laser brand game ball for more info.	$2.50 EACH $2.00 EACH for 5+ Part Number LB-1 Ball's weight is approximately 1/4 of a pound each.	Standard Sized Pinball Game Ball 11/16 Inch in Diameter Highly Polished Mirror Finish Playfield Game Ball	(Pin) - Used on most pinball games including electromechanical and solid state era pinball games.	These game balls have been mechanically polished for 72 hours for a mirror finish and will add a 'touch of class' to any pinball machine.
RUBBER RING KITS See Ring Kits page for more info.	Kit price, number of rings and color of rubber are all game specific.	Black or White Playfield Rubber Ring Kits by pinball game.	(Pin) - Used to replace the old playfield rubber rings.	We use only one ring manufacture to make these kits. All kits are game specific.
Return to Component Index					pinballmedic.com Main Site

Component Abbreviations

(Pin) - A PINBALL MACHINE ONLY PERIMETER	V = Voltage measured in Volts	uF = micro Farad
(Vid) - A COIN-OP VIDEO ARCADE ONLY PERIMETER	H. V. = High Voltage	P. S. = Power Supply
(GG) - ELECTRO-MECHANICAL GUN GAME	A = Ampere measured in Amps	RAM = Random Accessed Memory
(EM) - ELECTRO-MECHANICAL ARCADE GAME (SS) - SOLID STATE ARCADE GAME	MPU = Micro Processor Unit	PROM - Programmable Read Only Memory

Pinball Medic
Located in
Austin, Texas.
Buys, sells, repairs and
restores Coin-Op arcade
game equipment including
Pinball Games,
Video Arcades,
Electromechanical Gun Games.

Payment Methods:
Cash, Money Order,
Checks, Cashier's Check.
No Paypal or Credit
Cards accepted.

Pinball MedicLocated inAustin, Texas.Buys, sells, repairs andrestores Coin-Op arcadegame equipment includingPinball Games, Video Arcades, Electromechanical Gun Games.

Payment Methods: Cash, Money Order,Checks, Cashier's Check. No Paypal or CreditCards accepted.

Pinball Medic
Located in
Austin, Texas.
Buys, sells, repairs and
restores Coin-Op arcade
game equipment including
Pinball Games,
Video Arcades,
Electromechanical Gun Games.

Payment Methods:
Cash, Money Order,
Checks, Cashier's Check.
No Paypal or Credit
Cards accepted.