Teres Audio motor help!

So... I am trying to unmothball my turntable. Teres model 245 w/ older motor with battery power. In the process, have discovered that the speed control is haywire. Powering up results in extreme speeds and never “settles down” Don’t know if the sensor is bad, chip malfunction, or just time to get a new drive. Problem is I can’t get in touch with Chris Brady, who is the Teres guy. I think I have the correct email, but no response. Anybody out there in Audiogon land able to help? With contacting Chris, repairing the motor, or recommending a suitable replacement? Any help would be greatly appreciated.