VHS modified as high quality audio recorder

It seems to be not clear, that this modification is from 1982! The time that DAT was very expansive or (in my case) not available at all. VHS and tape’s where cheap and the ’standard’ HiFi recording had it’s drow-backs. This Hitachi VHS recorder was in my collection, from the beginning of 1982, give or take a few years. One of two machines. Not used for all that time, decided to fully overhaul the unit. New belts etc. Because it was somehow special. In my wild years (1982), a converted this recorder to a HiFi audio machine. So designed and build the necessary electronics to use it, without video. The idee was; if you leaf the video out, there is more room for a audio track on the rotating drum. The head amplifiers will give more output, and the quality will be better. I was not disappointed in the results. And after 40 years, it still produces a clean and perfect sound.