The Simplex 2901 Series was a line of audible signals made by other companies, and relabeled by Simplex in the 1980's. the series consists of horns and bells. THIS IS NOT A COMPLETE LIST-PLEASE CONTACT ME IF YOU KNOW OF OTHERS. THX! Model no. List 2901-9002: Bell, 6", Single stroke, 4vac, 2901-9040: Bell, 4", [unknown], 24vac, beige 2901-9046: Bell, 4", Vib., Beige, 24vac 2901-9046: Bell, 6", Vib., Beige, 24vac 2901-9046: Bell, 10", Vib., Beige, 24vac 2901-9066: Bell, vib, 4" beige, 120vac 2901-9067: Bell, vib, 6" beige, 120vac 2901-9068: Bell, vib, 10" beige, 120vac 2901-9085: Bell, S.S., 6" red, 4vac 2901-9086: Bell, S.S., 10" red, 4vac 2901-9305: BELL/VIB 12VDC 6" RED 2901-9320: Bell 2901-9321: RED BELL 10" 24V 2901-9322: Bell, 10" [unknown] 24-28vdc 2901-9331: BELL/VIB 24VDC 4" RED 2901-9332: Bell, 6", Vibrating, 21-28vdc 2901-9333: Bell, 10", Vibrating, 21-28vdc 2901-9351: BELL/SS 1.2VDC 2901-9352: BELL SS 2901-9365: BELL/SS 24VDC 6" RED 2901-9366: BELL/SS 24VDC 10" RED 2901-9549: HORN, 120VAC, RED SURFACE 2901-9550: HORN, 120VAC, BEIGE, SURFACE 2901-9552: HORN 120VAC BEIGE 2901-9553: HORN 6VAC RED 2901-9554: HORN 4.5VAC 2.5A RED SURFACE 2901-9559: HORN 12VAC Beige 2901-9560: HORN 24VAC Beige 2901-9711: BELL, VIBR POL RED 6" 24VDC 2901-9712: Bell, vib pol red 10" 24vdc 2901-9806: Horn, Surface, 24vdc 2901-9837: MINI HORN GENGX90-4 OFF WHITE 2901-9836: Mini-Horn, semi-flush, red, 24vdc 2901-9837: Mini-horn, semi-flush, white, 24vdc 2901-9833: Horn, Surface, 21-28vdc 2901-9838: Horn, Surface, 21-28vdc 2901-9840: Horn, Semi-Flush, 21-28vdc 2901-9844: HORN, ELEC 24VDC EH-EL1-R 2901-9845: Horn, Semi-Flush, 21-28vdc, 100db 2901-9846: Horn, Surface, 21-28vdc, 100db 2901-9517: Horn, Surface, 6vac, 2901-9525: Horn, Surface, 120vac, red 2901-9551: Horn, Semi-flush, 120vac 2901-9553: Horn, Surface, 120vac
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