N. Körber (3)

| The model rail manufacturer Märklin produces the turnout mechanism (or points) type 74490 for C track, the 7549 for K track (H0 gauge) and a...

| Three components and an arrow-style knob. This manual speed control for the Marklin DELTA multi-loc system adds independent control for an a...

| In most variable power supplies, the correlation between the setting of the wiper of the relevant potentiometer and the output voltage is...