Here is a K-Line by Lionel 6-22238 O Ringling Bros

Trainz Product Id: 11631135

Trainz Product Id: 11555940

11) Proto-Scale 3-2 3-Rail/2-Rail Conversion Capable

SoundTraxx 883001 Econami ECO-100 1-Amp 4 Function Sound & Control Decoder DwDetails-0.70-0.45-9.30-6.00-4.30-2 Here is a K-Line byThIs Is a SoundTraxx 883001 Econami ECO 100 1 Amp 4 Function Sound & Control Decoder. Our smallest sound decoder, ThIs micro 1 amp, universal style format Is ideal for small models With minimal space. It includes an optional capacitor or can be wired to a CurrentKeeper (P. N. 810140) to maintain performance over dirty track and switches. Condition: Factory New (C 9) Operational Status: Functional Original Box: Yes (P 9) Manufacturer: SoundTraxx Model