A look at Akai's impressively complicated 1972 Invert-O-Matic Cassette Auto-Reverse mechanism. Features a New-Old-Stock Akai CS-55D tape deck. The Techmoan channel can be crowdfunded on Patreon at... http://patreon.com/techmoan A Couple of updates CLICK SHOW MORE A common thing to mention is the auto-reverse deck from Nakamichi seen in the movie 9 1/2 weeks. It’s also mentioned in this video. It was used in the RX-202 RX-303 and RX-505 Here is a video showing it in action. https://www.youtube.com/watch?v=5mEQGmyDhiY Loads of people have insisted I mention that amongst the other auto-reverse mechanisms, you could use a four track head so the tape can be played in either direction, this solution is commonly seen in small players like Walkman and car stereos. NOTE: 4 track cassette deck heads are not common in recorders and they weren't available in 1972. -----AFFLIATED LINKS/ADVERTISING NOTICE------ All links are Affiliated where possible. When you click on links to various merchants posted here and make a purchase, this can result in me earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network & Amazon. I am a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to AMAZON Sites (including, but not limited to Amazon US/UK/DE/ES/FR/NL/IT/CAN)