25 Jul
2012
25 Jul
'12
12:56 p.m.
I remember when early MOSFETs were shipped with the
leads connected
together by a small jumper. You installed the FET and then clipped
the jumper, Odd and disastrous things could happen if you forgot to
remove the jumper.
I've fitted CD laser pickup units where the laser diode was shorted out
(for ESD proteciton) by a blob of solder between 2 pads on the
fleixprint. After fitting the assembly and connecting the flexiprint to
the CD player PCB, you used desolder braid to remvoe this bridge and
thus enable the laser. If you forget, it doens't work (but normally no
other damage is done).
-tony