I needed to slow down a turntable to a very slow speed so I put an inline dimmer inline with the AC cord of the turntable. It works great but one thing happens and I'm not to sure of the answer. When I dim way down around %5 the turntable stops then I need to go at %100 then go back low again It seems when it hit it's lowest point before it stops i cannot increase back up unless I go all the way up on the dimmer (dimmer is "slider" type.

 

(I assume that you are talking about a "record player")

Putting a dimmer in line with an appliance like that will most likely result in some pretty erratic behavior.

It might have an AC synchronous motor, which will be unhappy with the dis-continuous waveform produced by the dimmer.

If it is a modern turntable, it might have an electronic motor control that will be struggling to cope with the mangled power input.

In short- expect anything- including smoke.