So here's the mechanism that started it all, the original Philips cassette recorder. This is a slightly later iteration with the speed regulator board but still the same chassis and layout. :
Rare Vintage Philips 5171 High-End Cassette Tape Deck Player In Working Order | eBay
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PHILIPS 1990 3-Head Stereo Cassette Deck FC870 | Radio's, Versterkers
Tape Deck Mechanism RT-1 R-Player Philips; Eindhoven
Philips FC870 Stereo Cassette Deck | CassetteDeck.org
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First Philips cassette recorder, 1963 - Media library | Philips
Philips N5846 Cassette Recorder Deck | Philips N5846 Cassett… | Flickr
Philips N2400 tafelmodel cassette-recorder (1971) - Philips - LastDodo
Buy Vintage PHILIPS AW 739 STEREO AMPLI DECK WITH PHONO STAGE @ MUSSICLOVERS Sale Pune-India
Stereo Cassette Deck N2533 R-Player Philips - Österreich
Vintage Rare Philips 5171 High-End Cassette Tape Deck Player-Made In Japan | eBay
Vintage Philips Cassette Player Working - Etsy
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Philips cassette player hi-res stock photography and images - Alamy
