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     · 3 Amp DCC Booster Schematic. The following diagram shows the schematic for the circuit board for the 3 Amp DCC Booster. NOTE The variable resistor R10 shown on the schematic is an optional component and would only be installed if an overload current of less than 3 amps is needed. See the Optional Overload Setting Adjustment section below for further details.

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     · The circuit board is the foundational component for any DIY headphone amp project, so make the job of assembling it easier by selecting a basic circuit board. One of the simplest circuit boards for a homemade headphone amplifier is the "pad per hole" perfboard. This perfboard has a ring of copper surrounding each hole in the board allowing each

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    The rule of thumb for 100 amp is that you go with a wire size gauge 1. 125 amp requires a wire size 2/0. For 150 amp, the right wire size is 3/0. For 200 amp, you will want a wire size 250 kcmil. For 300 amp, the right wire size is 500 kcmil. 400 amp service requires a wire size of 1,000 kcmil. For 600 amp service, we recommend a wire size of

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    Circuit Board with All Components Removed. Cutting of the Circuit Board. Once all the components have been removed, you can begin the process of making customised breakout boards or even customised circuit boards. Start by marking the board with a permannent marker pen. Cut the board to your requirement using a Hacksaw.

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