The prototypes have been around for years and are still manufactured today

The TRAK-DTA circuit board is current sensing to activate signals for a variable amount of time

•Separate Metal Handrails

Model Number: 4204

The Trainz SKU for this item is P12308853

Broadway Limited 5141 HO Pennsylvania PRR T1 Duplex 4-4-4-4 with Sound #5506 VariantsUnitPrice_number_44.15 The prototypes have been aroundThis is a Broadway Limited 5141 HO Scale Pennsylvania PRR T1 Duplex 4 4 4 4 with Sound Standard DC Blue Line #5506. This engine displays a hybrid diecast and plastic construction. The tender displays a plastic construction. Equipped with metal wheels. Condition: Factory New (C 9) Operational Status: Functional Original Box: Yes (P 9) Manufacturer: Broadway Limited Model Number: 5141 Road Name: Pennsylvania Railroad (PRR) MSRP: $349. 99 Scale Era: HO