OT Quadraphonic audio media

From: Douglas Quebbeman <dhquebbeman_at_theestopinalgroup.com>
Date: Fri Feb 22 08:31:04 2002

> There were three competing systems: QS (Sansui), SQ (Sony) and CD-4
> (JVC). Only the CD-4, which used a supersonic subcarrier a la FM
> broadcasting, required a special stylus on the cartridge (Shibata).

I bought and assembled the Southwest Technical Products CD-4
decoder, but could never get it operational (SWTP == on-topic).

If anyone on the list knows of anyone with experience
with this decoder, I'd appreciate a pointer in their
direction...
Received on Fri Feb 22 2002 - 08:31:04 GMT