Sorry, I was referring to the concept. The Elcassette was not the original conmcept of a packaged reel to reel tape cartridge system but a revival of the concept.
The Advent was not the first hi-fi quality cassette but was the first to make it popular to the masses. Advent had the player only, model 200 from memory. The Wollensak that had pretty much withdrawn to the educational, industrial, commercial and audio-visual markets came out with its stereo recorders for those markets and had released the version the Advent was based on to the home audio market almost a year before. We were marketing them coupled with the mono auto units based on the Philips portable and then its stereo version.
When he cassette was 1st introduced as a dictation format, I remember my old man asking if a stereo version was coming and at the time, the rep said it would never be successful as a stereo audio source b/c records and reel to reel was so much better. I guess he had forsighjt as when shown the first IBM small computer, long before the pc, he told them they would sell it to every company only if it had off the shelfware. They poo-pooed him. He went to a company in NH called Saunders to promote the idea but got the same response.
