Author Topic: Sucker for punishment - Stern MPU-100  (Read 1591 times)

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Offline AskJacob

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Re: Sucker for punishment - Stern MPU-100
« on: July 29, 2009, 09:58:13 AM »
Ok, lost track of time on monday night on this, thought "gee I'm a little tired - I wonder what the time is... and it was 2:20 am  @.@"

So thought I'd give it a break last night :)

I also have worn out my solder-sucker - the lip that catches on the trigger has rounded off!. I spent some time here http://www.ludatronics.com.au/ dreaming about owning a Aoyue 2702+ Complete Re-work, soldering & De-soldering station.

Oh how sweet that would be!

Well, I don't think I can spend $450+ right now... so off to one of the few real electronics stores left to buy another $15 sucker-pen...

I have taken a few pics as I have been going along, will get them posted tonight I hope.

Interesting observation - a LOT of the pads when I have been removing the components are BARE COPPER. Not tinned! (and no, I am not ripping out components and peeling off the tracks!)That is incredibly odd, as there is no real way bar sanding them down that you could remove the alloyed solder off the copper. My theory is that the corrosion has attacked the alloy of solder/copper in the joints, basically etching out a thin cross section in the joint. The good news is the copper cleans up reasonably well and tins nicely.

Cheers
Jacob