Hello,
Attached is a picture of my 1954 Seeburg 100G that I converted to Mp3. I bought the juke in VERY rough condition for $500 bucks. It was a real mess and the dome glass was missing along with all of the original speakers, amps etc. I had to strip the juke down to the wood and start completely over. I put another $600 bucks into it replacing the glass, animation units, mirrors etc. The next step was figuring out how to use the original keyboard. Since I had already made a Mame game cabinet I knew I could use an IPac but I had to do quite of bit of rewiring to get it too work. I hooked up an old computer and it worked just fine. The next problem was figuring out how to control iTunes via the original keyboard. What I ended up doing was writing a small program in Winbatch which is a scripting language that is used to control other applications. Basically what it does is grabs the selection keys such as A1, A2 etc and sends it too iTunes in which I have playlists with the same name. The whole thing worked out rather well.
Since the juke is hooked up to my wireless network some of the selections are internet radio stations. I didnt want to collect a bunch of Jazz or Reggae so when the user selects those it just connects to one of those 24/7 net radio stations which is a nice feature.
The sound is pretty amazing. In the juke itself there is one 8" and one 15" speaker but it sounded rather mono so I added two external JBL's on the side. The computer has 5 channel SoundBlaster PCI type card that outputs to a Yamaha 200 watt analog amp. I can control the volume, mute etc via a wireless Keyspan remote control.
The illusion is complete as when the user makes a selection the record mech is triggered and it grabs a record and starts playing it! This was a real engineering problem but I got it too work after learning some basic electronics.
This project was really fun and it was worth the year or so it took me to complete it.