Märklin HO 6620 Transformer 2100 2190 2231 K Track Rails Set with Original Box 6620 100V 30VA Transformer for Japan, Working 2100 Straight Rail 1 piece 2190 Straight Rail with Feeder 1 piece 2231 Curved Rail 12 pieces A basic endless oval track can be constructed. If there are locomotives on sale at the same time, you can run them immediately. Offered for sale to organize my collection. The items are the transformer, rails, and the original box in the photos; other backgrounds are not included. The transformer has been tested with a tester and its operation, including reverse, has been confirmed by running a locomotive. The pilot lamp does not light up due to a burned-out bulb. Also, part of the surface display is rubbed off. It is a 30VA high-capacity version. According to Märklin, Locomotives require about 10VA each. Light bulbs require about 1VA each. When driving solenoids (electromagnetic coils) such as points, about 4VA is required. For your reference. Regarding K track rails, The notation changed from the 21xx series to the 22xx series, but they are the same specifications. The series may be mixed because the imprints on the sleepers are difficult to see. The items are used and stored, so there are rust, dirt, and scratches, but I think there is no problem in use. As they are old items, there may be oversights such as aging deterioration. Please forgive me in that case. The original box is damaged to some extent due to its age. In any case, please understand that these are used items before considering purchasing them. If you are nervous or looking for new items, please refrain from purchasing. I hope that those who understand will purchase. #6620 #100V #30VA #Transformer #2190 #2100 #2231 #maerklin #marklin #Märklin #K Track #Power Pack