ok, i have this pedal (it's a series 10 bass flanger by a company called bentley that no one's ever heard of) and i'm wondering if it's analog or digital. it is made in japan and has a plastic case so i'm assuming that it's from the 80's to early 90's. the serial number is 13668. here's a link to a picture of one --->
http://filters.muziq.be/model/series10/s10bf
any and all help will be appreciated, thanks!