Interesting article. Documentation of yesteryear's technology. I have one Axia 120 min tape. Also I have 80 min and 74 minutes tapes.
I think I have a handful of 120's but they were pretty rare at the thrifts in the old hunting days. This magazine recently popped up on archive.org but there's not many issues.
DAK turned into a electronics mail-order clearing house, I just found these catalogs for early cassette and R2R products, check out the "used" tapes!
A Japanese Website with some neat history of the compact cassette https://otakuma-net.translate.goog/...uto&_x_tr_tl=en&_x_tr_hl=en-US&_x_tr_pto=wapp
From 1966, a neat magazine cover over on archive.org, thanks Wegavision!!! I'm wondering how world-changing this was to audio at the time?
Have you got a picture of the very first Philips Compact Cassette that was released? And what was the model designation given?