[Elecraft] Protect boards from ESD too (WAS: K2 a problem solved)

[Ron D'Eau Claire]

Bill, VK4SQ, wrote:
...A final word --- this is the second 2N7000 that has brought me undone on
this build --- earlier on Q5 deprived me of sidetone for a while, obviously
these mosfets are rather fragile devices --- whilst I did not use a mat
during the build I did diligently wear a wrist band whilst assembling
sensitive devices ...

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It's good practice to use ESD precautions whenever handling individual
boards as well as when handling components. Depending upon the circuit,
ESD-sensitive terminals of a transistor or I.C. may be open at the board
connector until the board is plugged in, leaving it as exposed to ESD damage
as if one were handling the part itself. 

Ron AC7AC