In this video I am developing the SMD pick and place pen that consisting of one vacuum pump and 2 solenoids.
The updated schematic is shown here:
https://youtu.be/Q16PoXZDJyo?t=11m17s
There was an error with relay driver transistor...
Links to rest of the videos in series
(2) https://youtu.be/d-iJDVw1978
(3) https://youtu.be/Q16PoXZDJyo
(4) https://youtu.be/s9xIzmQ8K6c
GitHub Repository at
https://github.com/tdarlic/smd_pen
...
https://www.youtube.com/watch?v=k6m5PAlaBAs
Test of newly bought guitar EF-500RCE
http://www.epiphone.com/Products/Acoustic-Electric/Masterbilt-EF-500RCCE.aspx
Filmed with the Canon G15 and it's microphone. Unplugged
...
https://www.youtube.com/watch?v=AVLKi7tUlb0