Märklin HO Gauge. This is a digital older Motorola chip 701.13 conversion set with new motor for older Märklin locomotives.
Marklin 03084 HO Digital Control w/Marklin Central Station 3 Model RR Manual
55275 Piko HO Digital Binary Power Socket
00172-D Piko HO Digital Locomotive Taurus Railjet 1116.230 Of The OBB Ep. V
The Propulsion Principles of the Steam Locomotive, Socrates, NUR, 1924
General Electric GE Instruction Book Power Transformer Propulsion Lab 1957 NACA
Marklin Digital HO Gauge 6082 Digital Decoder C 82 - For DC Locomotives
