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 | External Speed Controller
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| Building the front panel PCB
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| Assembling the front panel
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| Cutting and assembling the rear panel and its connectors
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| Removing the rotary switch and trim pots from the speed controller PCB
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| Building the Veroboard chassis and mounting the the speed controller PCB
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| Assembling the speed controller in its case and building the power lead
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| External 9V power supply unit
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