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Dec 19 2012 In my garage I found a 20 length of instrumentation cable with shielding. Cut and strip one end of the cable and solder 2 of the available 4 signal wires to the signal contacts on the antenna’s round printed circuit board. Also solder the uninsulated drain wire which connects to the shielding to the board’s ground contact in the middle.
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Dec 02 2020 Wet etching is a type of etching process where the unwanted material is dissolved when immersed in a chemical solution. Two methods of wet etching are employed in common by the PCB manufacturers depending on the etchants used. Acidic etching Ferric chloride and Cupric chloride . Alkaline etching Ammoniacal
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Feb 06 2014 With the printed circuit board industry moving to fine pitched low clearance lead free products the risk for ECM failure is ever increasing. Those companies in need of the most reliable PCA possible IPC Class 3 High Performance Electronic Products want to evaluate what effect these assembly changes will have on long term performance.
Sep 10 2020 How To PCB PCB Assembly Videos 8 Common Errors in Surface Mount Technology SMT Surface mount technology is not a zero defect soldering process. In this article we will look into simple defects in surface mount technology SMT that cause your PCB to fail and try to work out how to avoid them.
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If you try another battery and still have no power you could have a faulty circuit board. In order to change this you will need to remove the screws from the casing and remove the casing from the drill to see the circuit board inside. Replace the circuit board with a working replacement board and reassemble the drill.
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The better quality is definitely worth it I asked a professional photographer and friend for help and he took less than a hour to produce a professional quality photographic mask from my original inkjet printout Two hours later my board was ready. Most of the holes are 0.8mm diameter. Others are 1mm and a few are bigger.