Check the listing for details. 6 WILLIAMS / DATA EAST PINBALL MACHINE /ARCADE VOLTAGE REGULATOR CHIP LM723CJ. Condition: New. Listed at 9.99 USD. HELLO, OK, YOU ARE BIDDING ON A 6 PACK OF LM723CJ VOLTAGE REGULATOR IC CHIPS IN A CERAMIC PACKAGE! THESE ARE NEW OLD STOCK (NOS) NEVER USED IN ANYTHING. THESE ARE QUALITY NATIONAL SEMICONDUCTOR CHIPS FROM BACK IN THE DAY, NOT CHINESE JUNK CHIPS MADE TODAY WITH BITS OF BROKEN GLASS, WINDOW CAULKING, AND RECYCLED MILK JUGS. THESE ARE ADJUSTABLE 2-37 VOLT REGULATOR CHIPS USED IN WILLIAMS ARCADE VIDEO GAMES SUCH AS DEFENDER, STARGATE, ROBOTRON, JOUST, BUBBLES ETC.. ALSO USED IN WILLIAMS PINBALL MACHINES STARTING WITH SYSTEM 7 AND DATA EAST PINBBALL POWER SUPPLIES AS WELL. IF YOUR 5 VOLTS IS MESSED UP ON YOUR PINBALL MACHINE OR YOUR 5 OR 12 VOLTS IS MESSED UP ON YOUR WILLIAMS ARCADE GAMES THIS MAY BE YOUR PROBLEM OR 1 OF YOUR PROBLEMS. I'M SELLING SOME OF THESE OFF, BECAUSE I HAVE A BUNCH OF BUBBLE MAILERS TO GET RID OF. THESE WILL SHIP FIRST CLASS USPS. THE SOONER YOU PAY, THE FASTER IT IS FOR EVERYONE INVOLVED. I DO NOT CONTROL THE MAIL, SO IT TAKES WHAT IT TAKES. SOLD AS-IS, NO RETURNS. LOOK AT PICTURES CLOSELY SO YOU KNOW WHAT YOUR GETTING. THANX FOR LOOKING. *** IT SHOULD GO WITHOUT SAYING, BUT FOR THOSE WHO STILL DON'T KNOW, ALL IC'S THAT ARE REPLACED SHOULD BE SOCKETED. DO NOT TRY TO SOLDER THESE ON THE BOARD. IF YOU INSTALL CHIPS WITH OUT SOCKETING THEM, YOU ARE MAKING A BIG MISTAKE***