the little switcher proved so popular that it was reintroduced in 1945 and built through 1949 and some are still working today

This is Circuitron 5615 HO Tortoise control automatic

For those who want a complete model

ElectroCoupler™ on front end

Here is a Williams 20192 F-3 AA Southern Powered and Dummy Locomotive Set

Lionel 8-82101 G Lock-on With Wires ProductID_12002546 the little switcher proved soThis is a Lionel 8 82101 G Large Scale Lock On With Wires. Designed for quick, positive connections between transformers, track and accessories. These may come in the old or new packaging. Condition: Factory New (C 9) Operational Status: Functional Original Box: Yes (P 9) Manufacturer: Lionel Model Number: 8 82101 Years Manufactured: 2003 ???? MSRP: $23. 99 Scale Era: G Scale Model Type: Track The Trainz SKU for this item is P11402138. Trainz Product