Tri-ang R42 Speed Control Unit - Boxed

Vintage Triang RP14 Speed Controller Unboxed - needs repairing

Triang RT.42 Speed/Power Control Unit - untested

Tri-ang R42 Speed Control Unit. Controller. Transformer. Untested Sold As Seen

Hornby Railways Zero 1 R951 Slave Control Unit Boxed Untested

Vintage Meccano Power Control Unit A3, Boxed

Tri-ang HORNBY (ROVEX) RP42 Circuit Control Unit / Power Controller - Boxed

Hornby R915 OO/HO Gauge Power Controller Model Train Speed Control Unit Unboxed.