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Hi,
First, sorry for my english!
I had a bad preamp in my 8 track player so I did my own SB with those little cheap boards:
I've bought 2, one for the background sound and one for the cat, witch and monster sounds.
All trigged by a relay board, something like that:
http://yourduino.com/sunshop//images/products/large_155_4relays-1.jpg
Will try to take pics of the final product in the game...
Quoted from JeffF:So, are you powering the audio boards with a wall wart? I see you wired an adapter jack on that break out board to the left but can't see what is powering it. Also, I love the use of the JammaBoards.com breakout board. No hacking of factory wires, nice!
When you trigger the sounds from the relay board do they always re-start from the beginning of the sound file? Or can you continue them like the 8-track player inherently does?
Thank you very much for posting your solution. I was going to hack two .mp3 players into the 8-track housing to take the place of the 8-track player heads and I planned to use the stock pre-amps. Your solution appears to not require anything that is inside the 8-track housing! Which is what I'd like to go for also.
Thanks again for posting!
Yes, I used a wall wart for the audio boards. I used the 115v of the 8 track player to feed the 4.5v wall wart. Jacks are for speaker output. Each audio board have their output speaker jacks and both are pluged in the original amp of the game. I did it that way because like that I keep the original speaker and still had the gun shot sound. The "pow" is generated by a section on the amp. I used 2 audio boards expressly to have the music played continually during the game. Both audio boards are trigged by the relay bord. 4 relay, music, cat, witch and monster.
On the start button, I add a new leaf switch who trig the background music board so when I push the start button both audio boards are powered and music start.
Yes, all original wires and plugs are still there. The 8 track player is completly gone. Only hacking I did is on the 30 degree relay, I unsoldered the +16v wire and I did a jumper between both switch to feed ground (from a power supply I did to feed 5v to the new relay board) to the relay board who trig the sound and music boards.
The sound file play one sound after each other. If I remember right, I think I can choose a ramdom option too. Music plays in loop until the game is over.
Ok, hope you understand me a little bit?!! 
I did a schematic in the past, I will try to find it and I will post it here.
Quoted from uncivil_engineer:Last year I picked up a Midway Flash bat and pitch that has a non-working 8 track. However, I did find someone who had the sound files already converted to MP3 format. I may have to look converting this machine. I think it will be much simpler that a Haunted house conversion because there is only 4 sound involved in my case.
Is it the same tape player than the HH? Probably a similar conversion... Any schematic somewhere?
Quoted from Kevwolf69:Massive round of applause to AMX. Awesome work. Could you please supply a link to the 5vdc supply. Once again awesome work.
This is not exactely the one I've used but something similar... I bought a cheap DIY kit on ebay.
Very simple little circuit with a LM7805 voltage regulator... Lot of info and DIY on the web...
IMPORTANT NOTE about the 5v PS board.
I just remembered, on mine the polarity was inversed so when 15vac will be pluged, double check the 5vdc output polarity on yours to be sure positive is on the positive side of the connector!
Quoted from cmelbye:Hi, Where can I get the sound files for Haunted House? Thanks!
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Saint-jérôme, QC
