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 MUTHA.PCB

        DESIGNING AN MPU         

MUTHA.PCB BEGAN AS A GROUP OF SMALL PLUG-IN PC BOARDS 12 YEARS AGO. THEY WERE DESIGNED TO EXPAND THE CAPABILITIES OF THE BALLY -35 BOARD.

 

12 YEARS AGO........

        THIS BALLY MPU/TEST FIXTURE (CIRCA 1995) HAD A 6802 PROCESSOR IN PLACE OF THE 6800. THE CRYSTAL DRIVEN 6802 REPLACED THE  BALLY 2 CHIP CLOCK CIRCUIT AND ELIMINATED THE U7 6810 RAM. ALSO BEING TESTED WERE 2 X 2732 COMBO GAME ROMS AT U2 & U6. NEXT IN LINE WAS THE 5101/6116 ADAPTER THAT ELIMINATED THE FLAKY CMOS RAM AND NICAD BATTERIES. THIS MPU HAD ALL OF THE JUMPER COMBINATIONS TRANSFERRED ONTO DIP SWITCHES SO THAT THE BOARD COULD BE TESTED USING ANY GAME ROM COMBINATIONS OF 2716/2732/2532 - STOCK BALLY PROMS/ ROMS/ EPROMS IN U1 THRU U6. SHORTLY INTO THIS PROJECT, ALL 50 BALLY GAMES WERE PROGRAMMED INTO 2732 EPROMS. THIS WAS ACCOMPLISHED USING A 1990 NEEDHAM EMP BURNER AND A (DOS) NORTON COMMANDER PROGRAM. THE PRODUCTION OF INDIVIDUAL SMALL PCB'S NEVER REALLY GOT STARTED BECAUSE SOME GENIUS THOUGHT ALL THESE INNOVATIONS WOULD BE REALLY NICE TO INCORPORATE INTO A BRAND NEW MPU DESIGN. THE MUTHA WAS FIRST DESIGNED IN 1995 BUT STAYED IN HOUSE UNDER TEST FOR ONE YEAR. IT WAS LEFT RUNNING IN A XENON GAME FOR 12 MONTHS- 24 HOURS A DAY FOR A TOTAL OF 8760 HOURS. THAT TEST PROVED THE RELIABILITY AND THE MUTHA.PCB WENT PUBLIC. MANY UPGRADES AND CHANGES HAVE BEEN IMPLEMENTED OVER THE LAST 12 YEARS. MAINLY IN AND AROUND THE 6116 CMOS RAM AND BATTERIES. THIS BECAME A DALLAS DS 1220Y WITH ON BOARD LITHIUM BATTERY. FINALLY EVOLVING INTO A SERIES OF SIMTEK IC'S WITH A 99 YEAR LIFE CYCLE, NO BATTERY NEEDED. THE 2 X 2732 GAME ROM FORMAT ALLOWS MAXIMUM FLEXIBILITY WHILE RETAINING POSITIVE GAME IDENTITY. THE MUTHA.PCB HAS EVOLVED INTO A REAL CLASSIC BALLY REPLACEMENT MPU.

 

MUTHA.PCB 2007

  DESIGNED FOR EVERY Bally PINBALL GAME LISTED BELOW.

     FREEDOM, NIGHT RIDER, EVEL KNEVEL, EIGHT BALL, POWER PLAY, MATA HARI, BLACKJACK, STRIKES AND SPARES, LOST WORLD, 6M$MAN, PLAYBOY, SUPERSONIC, KISS, STAR TREK, PARAGON, HARLEM GLOBETROTTERS, NITRO GROUNDSHAKER, SILVERBALL MANIA, SPACE INVADERS, DOLLY PARTON, ROLLING STONES, HOT DOGGIN, FUTURE SPA, MYSTIC, VIKING,  SKATEBALL, FRONTIER, XENON, FLASH GORDON, 8 BALL DELUXE, FIREBALL II, EMBRYON, MEDUSA, FATHOM, CENTAUR, ELEKTRA, VECTOR, MR & MRS PACMAN, SPECTRUM, SPEAKEASY, SPY HUNTER, KINGS OF STEEL, BMX, FIREBALL CLASSIC, BLACK PYRAMID, GRAND SLAM, GOLDBALL, X's and O's, CYBERNAUT   

 

MUTHA.PCB LISTS FOR $177.00 (INCLUDING POSTAGE).

 

 

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