Originally Posted by bgriggs
The next step in the construction was to install resistors R9-R12 and solder them in place. These are 100K resistors and they are color banded Brown, Black, Yellow, Gold. After each step in the build I checked the solder joints under a magnifying glass. It is easier to find a cold solder joint as you add parts to the board, rather than checking the entire board in one session.
Bill, do you have any Macro pictures of the soldering joint? are you adding flux to the joint before you solder and if so, how are you applying it?
Thank you again