Arp 2600 as a guitar amp.

Arp 2600 as a guitar amp., a photo by Switched On Austin on Flickr.

infinitphase

infinitphase, a photo by For Musicans Only on Flickr.

Crumar DS-2, side view.

Crumar DS-2, side view., a photo by Persiflage on Flickr.

Crumar DS-2, oscillator detail.

Crumar DS-2, oscillator detail., a photo by Persiflage on Flickr.

Trevor Pinch's early 1970's-vintage synthesizer

Trevor Pinch's early 1970's-vintage synthesizer, a photo by exakta on Flickr.

The Voice of Saturn Sequencer & Synthesizer

The Voice of Saturn Sequencer & Synthesizer, a photo by oliverchesler on Flickr.

Eco a cinta SUNDAY Mod. ST-177

Eco a cinta SUNDAY Mod. ST-177, a photo by Efectos Cluster on Flickr.