As I became more and more obcessed with my research on DJing setups, I started to use Google patents search-engine to look for some detailed info on CD-players or newer turntables – regarding features that are closely related to my proposed work towards a multitouch virtual DJing application.
During that research I came across some interesting old patents, of the earlier Panasonic models for instance. So I post some here, the links are placed below each image (which are aesthetically amazing!).
Patent no. D252393 Filing date: 5 Apr 1977
Visit the patent of this turntable model from 77, here.
Patent no: D249143 Filing date: Jun 16, 1976
Visit this oldie patent, here.
The all-time classic: Technics Sl-1200
If you wish to see the SL-1200 schematics, go here.