Haven't seen one like that before. Have seen aftermarket sound boards in place of chimes. Neat find. Is there a sticker on the sound board ROM?

I think they did that at the end of the runs for a couple machines from the period as Bally made the transition to full electronic. I think there were some later Bobby Orr Powerplays and a few others that ended up like that too.

What's the serial number on the cabinet? Bally made like 20,000 of those Eight Balls.

This would be a great addition to the IPDB!
http://www.ipdb.org/machine.cgi?id=760
--
Chris Hibler - CARGPB #31
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http://webpages.charter.net/chibler/Pinball/index.htm
http://www.PinWiki.com - The new place for pinball repair info

Bally issued a kit to convert any of the first 8 electronic mechanical chime games to electronic
sound chimes. It was kit K-525 that had a replacement back box cable, sound board, and all
mounting hardware. Bally F.O. 608 was the the procedure for installation of the kit for the conversion
to electronic chimes. The speaker placement on your game is where Bally specified it in the
instructions. I don't think many games were converted this way but it was an option for operators.

Here it is.

AS-2888-2 soundboard designed as a replacment for chimes for the following pinballs: Black Jack, Eight Ball, Evel Knievel, Mata Hari, Power Play, Strikes & Spares.

It is the same as a AS-2518-50 board.
It uses a 725-22 eprom. The jumpers on this board:

a,d: always
b,c: never

pro_sound50008.jpg

http://www.pinball4you.ch/okaegi/rep_soundold.html

The board in his pic looks like a -32 and not a -50. Makes me wonder if it came that way from the factory, esp given the other comments.

viperrwk

I've always *heard* about those sound board conversion kits but never actually seen one before in an early Bally machine. Thanks for posting the pictures. Be sure to submit them to IPDB too.

Makes you wonder about adding sounds to those old pins instead of chimes.
Already been done?

I personally put in about 20-30 of these in games through out the Bay Area back in the day. I only remember converting Eight Ball and Mara Hari. We had a whole shelf with nothing but chime boxes after doing those conversions.

Took about 30 minutes to accomplish cleanly.

My 8 ball must have been an early machine. The back glass stays in the door as the EM machines did and whole frame and glass is hinged on the left side to expose the electronic area of the back box. I have owned 3 of these games and this one is the only one I have owned that opened that way. I also have owned an Evel Kneivel that opened the same way. Just makes sense that they use up the old boxes as they made the transition.

Anyone have video of this game play of one of these conversions in action? Curious to hear/see what it sounds like.

I'm for that! I wish Paragon had multi-mode sound like Genie. I'd like the option to switch from the electronic sounds to real chimes.