Tri-ang P4-5 Power Controller The power controller is included and shows signs of age-related wear and surface corrosion to the casing. This has been tested recently and is therefore being sold as working and tested. Please study all photographs carefully as they form part of the description and condition report. Sold as seen and exactly as pictured. Ideal for collectors of Tri-ang, Hornby, Rovex and vintage British model railways. Collection necessary.