Earlier Tandberg decks used an AC capstan motor; can look at TCD 300, 310, 310MkII, 320, 330, 340A models. The 340A and 330 are 3-head decks, all are dual capstan.
Caveat 1: there was a retrofit kit for these that subbed a DC servo capstan motor for the original AC motor, might see that on a 330 or 340A here or there so pop the bottom cover to check for that.
Caveat 2: they all use direct-drive reel motors, only belts are for the capstan and tape counter. Not a bad thing, but those are DC motors.
John