Converting Exidy Venture to Teeter Torture possible?

Tornadoboy

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Converting Exidy Venture to Teeter Torture possible?

Just curious, both games seem to share the same sound effects so I'm wondering if perhaps they share the same hardware too, and if a simple ROM swap could convert them?

It would be kind of cool, having a dedicated Teeter Torture since there was only one machine ever built.
 
are the teeter torture roms available? I've been doing research lately that leads me to believe it's possible but may require slightly more than a rom swap. Although I'm certain if I could get detailed pics of the board set and the roms it could be done.
 
are the teeter torture roms available? I've been doing research lately that leads me to believe it's possible but may require slightly more than a rom swap. Although I'm certain if I could get detailed pics of the board set and the roms it could be done.

Yep, the owner was kind enough to release them to public domain, along with a lot of other great Exidy stuff like Side Trak, Rip Cord, Spectar, Targ, etc. They can be downloaded from here:

http://mamedev.org/roms/

I don't know if you'll ever get a pic of the boardset itself, there's only one in existance and they're in a dedicated cabinet which usually makes the rounds at CAX, whom owns it I'm not sure. There is a pic on KLOV of the marquee, so somebody ambitious might be able to replicate their own. Here's a pic of the cab too, it even looks like a Venture:

http://images.google.com/imgres?img...mages?q=teeter+torture&hl=en&gbv=2&tbs=isch:1

It looks like it has a roller controller though, so that might be a complicating factor for adapting the hardware.
 
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Yep, the owner was kind enough to release them to public domain, along with a lot of other great Exidy stuff like Side Trak, Rip Cord, Spectar, Targ, etc. They can be downloaded from here:

http://mamedev.org/roms/

I don't know if you'll ever get a pic of the boardset itself, there's only one in existance and they're in a dedicated cabinet which usually makes the rounds at CAX, whom owns it I'm not sure.

I live in CA and know some of the folks involved with CAX. Usually bring games to the show. I'm sure I can get the name of who owns the game and if they are willing get pics of the board. I did a quick search and there was a comment online that said originally it was unsure if this was an actual exidy game or a bootleg ran on exidy hardware. Which makes it even more likely IMO that it may just require a rom swap. From what I have found I believe it basically uses the same board set as venture and possibly pepper II. Although venture uses more roms than pepper II and some Pepper II boards are missing a few sockets venture would have. Although they could be added. No clue off hand how many roms Teeter Torture uses but I imagine it could be made to work with either a venture or a pepper II. As I mentioned though it might be slightly more than a rom swap. Possibly a few jumpers as well.
 
My understanding is that it was a one-of-a-kind prototype made for test marketing, so it would make sense that they'd try to use as much existing hardware as possible and avoid having to either hand wire or have a new design etched. The latest MAME supports it so I'm wondering if looking at how it emulates it might tell you something about the original hardware.

FYI - I just looked at the download zip file for the ROMS, if I can go by the included files it has 14 ROMS.
 
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My understanding is that it was a one-of-a-kind prototype made for test marketing, so it would make sense that they'd try to use as much existing hardware as possible and avoid having to either hand wire or have a new design etched. The latest MAME supports it so I'm wondering if looking at how it emulates it might tell you something about the original hardware.

It may. Basically about 6 or 7 exidy games used basically the same logic board. Of these at least 3 also use the same audio color board. According to what I've found online teeter torture should have used the same logic board. Not sure about the audio color board but my best guess would be that it did use the same board as pepper II and venture use as it has similar or the same sounds. I'll ask about it and see if the owner is willing to let me get some pics and info.
 
I don't know about the boardset because I couldn't look inside the machine..but the marquee..was just a custom art job that someone colored by hand on some type of paper behind clear plexi..had to look close to tell..nice job..remember thinking it was fun game at CAX when I attended.

DSC00731.jpg
DSC00727.jpg
 
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Hey all!

Just to add to the discussion...

I have seen the board itself, and it is the same dual board system as in the other Exidy games of that ilk (Venture, PII, Mouse Trap, etc.). I did not look at it closely enough to do any sort of detailed side-by-side comparisons with say a typical Venture board though.

I did try a month or so back to burn some ROMs for Hard Hat to see if they would work, plug and play, into an extra Venture board I have, but it did not. So there must have been differences between the 2 board sets which could also be the case with Venture vs. TT.

The game is owned by two of the main organizers of CAX, and the sticker on the game (which has been there since the show began in 1997) states that supposedly Exidy itself doesn't remember making the game :D . And, yes, the marquee is hand drawn...but I don't know if the current owners made it, or if it was acquired as is from Exidy or whomever the previous owner was.
 
I played the sh!t out of that game last year at CAX, probably the most of any game, very fun and addicting. Label on the machine did say "Exidy prototype" and I also remember the "they don't remember making this" blurb. If you're going to do it, I'd be in for one! :D
 
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Hey all!

Just to add to the discussion...

I have seen the board itself, and it is the same dual board system as in the other Exidy games of that ilk (Venture, PII, Mouse Trap, etc.).

Any idea if the roller control is something used by other Exidy games? I don't recall ever seeing one quite like that

I played the sh!t out of that game last year at CAX, probably the most of any game, very fun and addicting. Label on the machine did say "Exidy prototype" and I also remember the "they don't remember making this" blurb. If you're going to do it, I'd be in for one! :D

Ditto here, I'm not much of a techy when it comes to designing/modifying electronics, but I can see myself buying a Venture PCB, the eproms and a burner if such a conversion is possible.
 
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Just curious, both games seem to share the same sound effects so I'm wondering if perhaps they share the same hardware too, and if a simple ROM swap could convert them?

It would be kind of cool, having a dedicated Teeter Torture since there was only one machine ever built.

According to the mame source, it should drop right into venture... other than the controller interface.
 
According to the mame source, it should drop right into venture... other than the controller interface.

if you don't mind could you take a look at the mame source for hard hat and let me know if that looks like it should drop right in to either a venture or a pepper II board?
 
What model number eprom does Venture/Pepper II use? I'm trying to figure out how much it would cost me to try the conversion.

Also is Mouse Trap the same board? They're a lot easier to come by than Venture, and especially Pepper II. And I don't suppose Spectar uses the same board? I might have my hands on one in the not too distant future, although it sounds like I'll have to fix it first.
 
I picked up a spare board for my Venture about a year ago. Has some sound issues and hope to correct them with swapping out the POTS and reflowing the solder on the edge plug(s). What is interesting is that this board is "Version 6" which is a later version of the board and most everyone I know have Version 4 of the PCB. Also, what else is interesting is that the in version 6 you cannot shoot through the treasures and the high score table is much lower at boot up.

Photos and comparisons here.

http://www.coinopspace.com/group/venture/forum/topics/what-version-is-your-venture

I digress though... Wonder if Teeter Torture needs a higher version of the Venture board to run.
 
Looking at the pics of the original I've got a pretty good idea that controller could be replicated mechanically with a simple kid's scooter wheel mounted in a slot and resting on some roller pins with encoders.... hmmmm.... getting urges to experiment! :D If nothing else it might make a good spinner for things like Breakout and Arkanoid on the 60-in-1 I want to buy!
 
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What model number eprom does Venture/Pepper II use? I'm trying to figure out how much it would cost me to try the conversion.

Also is Mouse Trap the same board? They're a lot easier to come by than Venture, and especially Pepper II. And I don't suppose Spectar uses the same board? I might have my hands on one in the not too distant future, although it sounds like I'll have to fix it first.

mouse trap does not use the same board. Spectar may use the same logic board but the audio color board is definitely different. As for eproms this may be the trick when it comes to rom swapping one of these exidy boards. The truth is I don't know much about eproms and which are compatible or the same pin out. Reading through several exidy manuals they mention using different eproms on different runs of boards. It would seem to correct these pin out issues you would either need jumpers or a pcb that was pinned different. It looks as if the pcb's were not changed so my guess is some chips may have utilized jumpers to make them work correctly. So using the chips that are compatible to specific roms on a specific board might be the best way to get a working board. I found 3 differently marked eproms on one pepper II board set I have. may possibly be that all these eproms are compatible with each other but maybe not. obviously a chip or eprom that was not pinned out correctly may cause a board to not work or at least not work properly.

BTW when having a prom from an exidy board copied I became aware that although the manual lists a specific prom at a location on the board that the actual prom at the location was not the same.
 
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Converting Exidy Venture to Teeter Torture possible?

Just curious, both games seem to share the same sound effects so I'm wondering if perhaps they share the same hardware too, and if a simple ROM swap could convert them?

It would be kind of cool, having a dedicated Teeter Torture since there was only one machine ever built.

Would it make a difference that Teeter Torture was a b/w game and Venture was a color game?
 
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