with synchronized exhaust chuff utilizing LocoMaticTM Sound & Control type 4 system (Item #804), Chuff Sound Unit (Item #711), Optical Synchronization (Item #583), 11 Watt amplifier with treble and bass controls (Item #671), and large Oval Speaker (Item #665). Featuring front / rear headlights, front / rear markers, and rear coil coupler. These items can be added to any large tender. For proper amplifier operation, a minimum of 12 volts of track power is required. This is ideally suited for LocoMaticTM type operation with full track power available. Miniature Connectors for ease of tender disconnect. #521, and 611 Tender enclosure becomes Speaker Baffle LocoMaticTM Type 4 Sound & Control 2" x 3.5" Oval Speaker Item #665 11 Watt Amplifier with Treble & Bass controls. Item #665 Chuff Sound Unit, Item #711 Coil Coupler note: this engine has been modified to demonstrate many of our products over the years and has the scars to show for it. This is why you don't see a very well dressed installation in this picture. The installation can be done neatly in a fresh tender. Items were placed in certain spots due to previous installation hole patterns. ...