Posts by mchang

Good luck to you all.   I'd recommend reading the O2 Details page (not sure if I can post the URL) in detail -- and referencing it during the build. Highlighting and writing notes on a schematic printout was really helpful...

A few months ago, I had never picked up a soldering iron. Two nights ago I completed my O2 build. Woot!   If you have already learned how to solder and have the gear, then you're already many steps ahead of where I...

Thanks, tomb.   I've been using the Hakko brass wool iron cleaner from the beginning. I've actually never used a sponge for cleaning the tip, as weird as it may sound.   And I've been able to find a small bottle of...

I welcome both of your contributions. Let's please leave it at that. Thanks!

I went with the recommended BOM from JDS: http://www.jdslabs.com/bom203.php   The price really jumps when you buy the power adapter. I also went with the rechargeable option, which adds to the cost. But I did save some...

I'm getting ready to build one in the coming weeks (waiting on a friend who is currently moving). Parts have been received. I just need to eat a box of Altoids.  :)   Will report on any issues, solutions, challenges.

I did a good deal more practice and testing yesterday. I found the more magical combination to be:   used temp of 675 F, which is higher than I was using before. It was a dramatic improvement over 600. not...

Thanks for the suggestions, piotrus-g.   Questions: am I to add flux AND solder to the tip before? This would seem difficult and time-consuming to manage each time. is this still applicable if my 63/37 solder...

Thanks, everyone. Very kind of you to post your suggestions. I've tried several of the tips with good success.   I picked up a new kit from Fry's and practiced more last night. This kit has 28 LEDs alone, so there is plenty...

I've had my MD-5000 for almost three years to the month. I'm not sure what Lawton does these days with the pads, but my mods from back then included overstuffed factory pads. To this day the pads look great, seem to have held their...