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White Simplex 4903-9423 Horn/Strobes
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2
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79
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March 9, 2026
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Speeds of different addressable protocols
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2
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73
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March 5, 2026
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Simplex 4010 to Simplex 4003 Wiring Help
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8
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98
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March 4, 2026
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(Resource) Simplex 4002 Reproduction Labels
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5
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96
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February 27, 2026
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Simplex 4006 - Beeps continuously when LED annunciator is plugged in
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9
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131
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February 20, 2026
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University of Hartford fire alarm systems
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20
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273
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February 15, 2026
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Request for Simplex Documentation
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4
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86
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February 12, 2026
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What simplex panels are able to be networked and to what network?
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4
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188
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February 9, 2026
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New simplex alarm... Thing
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13
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97
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February 5, 2026
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(Very Rare) Simplex 4010ES 2-bay with FUI Display
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0
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66
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February 1, 2026
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How rare are these? Simplex 4903-9256 110 Candela Selectable SmartSync Horn Strobe
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10
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76
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January 18, 2026
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BlitzBiker2001's Vintage Simplex Collection
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5
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645
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January 18, 2026
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My Fire Alarm Collection So Far! :D
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4
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103
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December 5, 2025
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Vintage panel parts
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9
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113
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November 23, 2025
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My schools original fire alarm
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4
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79
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November 15, 2025
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Simplex 4020(s!)
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9
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212
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October 31, 2025
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Keep Simplex, or move to (some other vendor)?
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58
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1907
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October 31, 2025
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Looking For a Simplex 2903-9002/9102 Light/Strobe Plate
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0
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31
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October 29, 2025
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Simplex 4100ES Update - Now 30% Larger!
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11
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388
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October 23, 2025
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Change smoke detector sensitivity on Simplex 4100ES (Without PC)
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3
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98
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October 22, 2025
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Smart Sync emulator
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3
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58
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October 16, 2025
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4005 stuck in a boot loop
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12
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96
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October 14, 2025
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Please help with a simplex 2001! Any help would be appreciated!
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18
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89
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September 24, 2025
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Rincon/University High School (RUHS) Fire Alarm System
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25
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735
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September 16, 2025
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Duct detector 4098-9756 output abnormal
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4
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290
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September 12, 2025
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My collection as of this picture
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0
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91
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September 10, 2025
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Vintage Fire Alarm Parts for Sale!
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20
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423
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September 9, 2025
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4037 and more quietness solution
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2
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125
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September 8, 2025
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My Simplex 2001-8001
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17
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672
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August 29, 2025
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School fire drill
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1
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161
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August 15, 2025
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