via
this auction
"This rare expanders can be connected to Elka Organ or played with a special keyboard. it can produce very unusual electronic sounds."

Update via Matthew in the comments: "
wilgaplainboss.mp3)

From the looks and sounds of this the Wilgamat is the auto-accompaniment and drum box from the Elka X-705 (possibly the most fantastic keyboard in existence). Given that Wilgamats regularly clear £100, and Elka Rhapsodies & Elka Soloists make £200 each, the X-705 with two Rhapsodies, one Soloist, one Wilgamat, two drawbar organs, a dedicated preset analogue bass synth and a spring reverb represents something of a colossal bargain as they rarely raise over £300. Unfortunately they're also colossally heavy so look for one in your area. Berliners, get your money out - ;)"
http://www.mysterycircuits.com/projects/wilgamat/wilgaplainboss.mp3)
ReplyDeleteFrom the looks and sounds of this the Wilgamat is the auto-accompaniment and drum box from the Elka X-705 (possibly the most fantastic keyboard in existence). Given that Wilgamats regularly clear £100, and Elka Rhapsodies & Elka Soloists make £200 each, the X-705 with two Rhapsodies, one Soloist, one Wilgamat, two drawbar organs, a dedicated preset analogue bass synth and a spring reverb represents something of a colossal bargain as they rarely raise over £300. Unfortunately they're also colossally heavy so look for one in your area. Berliners, get your money out -
http://cgi.ebay.de/Elka-X-705-Analog-Orgel_W0QQitemZ280436507636QQcmdZ#ht_515wt_1167
;)