9V High Speed - recent experiences and questions - LEGO Train Tech - Eurobricks Forums
With Lego back to 1991 again: 9V train set 4563, flat bed with tractor 4543, tanker car 4537 and level crossing 4539. Still cobbling together some parts, but getting there. - 9GAG
Huge Lego 9 volt train dream layout fully automated by Arduino - YouTube