i wonder if these can be fitted to a boombox tape deck motor or vz 2000 turntable motor to control the speed?.
http://www.ebay.com/itm/DC-Motor-Speed-PWM-6V-30V-10A-0-100-Pulse-Width-Modulation-Controller-Switch-/351196836465?pt=LH_DefaultDomain_0&hash=item51c4f67271
http://www.ebay.com/itm/DC-Motor-Speed-PWM-6V-30V-10A-0-100-Pulse-Width-Modulation-Controller-Switch-/351196836465?pt=LH_DefaultDomain_0&hash=item51c4f67271