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We installed this timer PCB yesterday and it got me thinking. Who are the technicians that troubleshoot and fix these boards. Is it us? : r/electricians
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Rk Education 555 Astable Timer Project PCB Self Build Kit : Amazon.co.uk: Business, Industry & Science
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15B coin operated timer pcb controller control timer board for electrical vending /Water dispenser machine/Arcade game machine - AliExpress
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Identifying the "Preset" Component in this 555 Monostable Timer PCB - Electrical Engineering Stack Exchange
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