The Bus and Truck Combination Turn Signal and Hazard Warning Signal Flasher (Tung-Sol Model 550) was examined for identification and tested for 12-volt operation with the specified maximum hazard warning signal lamp load of four No. 1073, four No. 1141, eight No. 89 signalling bulb plus one No. 53 indicator bulb; the specified minimum hazard warning signal lamp load of two No. 1141 signalling bulbs plus one No. 53 indicator bulb; the specified turn signal lamp load of two No. 1073, two No. 1141, four No. 89 signalling bulbs plus one No. 53 indicator bulb. (Author)
Federal Motor Vehicle Safety Standard No. 108 (Lamps, Reflective Devices and Associated Equipment) Tung-Sol Model 550 Bus and Truck Supply Company
1970
21 pages
Report
No indication
English