why did my record player slow down, speed up, then go back to normal?


why did my record player slow down, speed up, then go back to normal? it all happened within maybe 12 seconds. it slowed down, then sped up immensely, then went back to normal speed. why?
leemurray2007
I actually went to play a record today, and I had to press the (electronic) buttons multiple times before it did its function. There was no speed swell, though.

I am thinking that the buttons are corroded.
I put myself through engineering school fixing problems like this. Its very common on older turntables. The speed selector switch can have corrosion, as well as whatever controls might exist for setting the speed on both 33 and 45.