The typefaces, called Retro Stereo Wide, Thin, and Thin Alternate,
can be found at http://www.acidfonts.com. The cost is absolutely free.
I've been trying to find a digital version of Yagi Double for years
and even made one myself in 1995. These typefaces I found were very
Look around in the free typeface websites. Who knows? You might find
something very interesting!