I totally agree with ekelly. I have had almost exactly the same experience with lifting a trace from the top of the board while focusing on the bottom of the board where the solder pads are. The solder was still attached on the top when I pulled it out, lifting the trace back to the inductor coil. I had to make that trace on the bottom side with a bit of wire. The last time I replaced the IRF510, I clipped the leads high, and soldered the new one to the leads sticking up from the board. I'll never have to worry about damaging the board if I need to replace the PA again.
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On Sat, Jul 8, 2017 at 07:00 pm, ekelley wrote:
IRF510 - A tip for those replacing the transistor. Don't try to remove it with a solder sucker. The pins fit
too tightly into the circuit board and unless you have a way of heating all three pins at the same time.
Try this, carefully clip the pins at the bottom of the transistor, if it is dead, nothing lost. Once the transistor
is gone, you can easily remove one pin at a time leaving a clean hole for installing the new transistor.
I replaced three of them and wound up damaging the circuit track on the board. The 510's are inexpensive
and not worth trying to save them, even if you are removing them to test them. They are too sensitive!
Ed
