images via this auction"MOS6581 SID------
The heart of the SidStation is the sound generating chip from the classic home computer Commodore 64. This sound-chip, the MOS6581 SID (SID for Sound Interface Device) was developed in the early eighties by Bob Yannes at MOS technology. It's a very unique-sounding marriage of analogue and digital techniques. However, the trend in sound synthesis soon changed towards sampling technology, and nothing like it has been produced ever since. The rediscovery of the SID-sound is a pleasant surprise for all sound explorers looking for something more exiting than the current crop of analogue imitating 'virtual' synthesizers."
