I have a Beocord 9000 cassette recorder which I use for mastering (!) I noticed that it's starting to run slow on play back. Do I need new belts do you think?
maybe. maybe something else (motor, electronics (speed adjustment???), pinch-roller (old, bad, slips???), maybe cassette itself isn't no-good)
Has anyone here ever seen a beocord in person and inside? What's there? I've only seen those slimmers on photos