Mattel Optigan

Yes, it's made by Mattel.  Yes, it's the "poor man's Mellotron".  But how many people do you know that even have one of these, much less heard of one?  In the early 1970s, the Barbie manufacturer developed a home organ that would play back sampled sounds of real instruments from optical discs, and called it the Optigan.  The discs were read by a light pipe that would play the sound as the disc turned and would loop around and around.  The best part was, it sounded like shit!  In fact, it sounds so bad that we bought a bunch of disc collections off eBay just because we love lo-fi!  This is about as analog as you can get, folks.
 









The discs themselves are made out of plastic, and they slide into a drawer hidden by the front panel. On each record are 5 preset patterns such as drums and rhythms, and a note for each key.  In addition, the round buttons are for chords.  To play the Optigan, you insert a disc and close the cover, turn the unit on, raise the volume pedal to activate it, and start playing.  Pretty simple.  The only major downfall is that the mechanical portion that drives the disc is very noisy, and it can overpower the actual music...