My motor is 24v DC so a dimmer switch is not an option but for a 240v motor it could be worth looking at.I mentioned the DIY idea to my sparky at work, he went a bit misty eyed and said "yea it would work, how about using a light dimmer switch to control the speed"
Might be an idea?
Obviously this comment was not aimed at me given my modest age, and anyway what are record players? I will refrain from answering...Anyway, do you old boys not have a record player sat in the corner that you could adapt?
OK, ok, yes so I do have a record player but it is a Linn Sondek lp12 with an Ittok arm, Stilton cartridge and Viking PSU and is my pride and joy, albeit currently in storage in DK with the rest of system...
(That was me going misty eyed)