Blaupunkt twen cassette-recorder 60's/early70's

Blaupunkt twen cassette-recorder 60's/early70's Video Clips. Duration : 5.10 Mins.

this thing must be from the late 60's or early 70's."Blaupunkt" is the brand.But i think it's japanese made.No built-in power supply.And it has AC Bias. All parts are japanese too like "sanyo" and so.It works very well, but the batt./level meter make some problems.In the video i have fixed this,but works only for short time,because I have to look again..