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Step 2Make and assemble the PCB
Manufacture one or more PCBs using the attached Gerber and drill files. A double-sided PTH process is required, so it is probably best to use one of the various small-volume professional PCB manufacturers; I have found PCB Train in the UK to be fairly reliable.
Assemble the board, taking great care when soldering the surface mount components. I found this one to be right at the limit of my dexterity. Note that there are two different types of SOT-23 transistor, and two types of 0805 resistor on the board. Look at the bottom silk layer to see the component names (R23 etc) and use this to match against the parts list in step 1.
Once you're done, your circuitboard should look like this.
Assemble the board, taking great care when soldering the surface mount components. I found this one to be right at the limit of my dexterity. Note that there are two different types of SOT-23 transistor, and two types of 0805 resistor on the board. Look at the bottom silk layer to see the component names (R23 etc) and use this to match against the parts list in step 1.
Once you're done, your circuitboard should look like this.
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