Very little use works as it should in both directions don’t look that old from a smoke free environment boxed see pictures
Hornby HM2000 Twin Speed Controller
gaugemaster twin track controller in working condition
Gaugemaster UD twin track panel mount speed controller & transformer, papers
Gaugemaster Model D OO Gauge Analogue DC Twin Track Speed Controller 12V 25W
Gaugemaster Series UD Twin Track Analogue OO Speed Controller 0-12V DC
H & M Duette Twin Supply Analogue Speed Controller OO Gauge 220-240V No.474
