Ramsey Electronics SHA1 User Manual
Page 15
 
SHA1
• 15
35. Install C16, 10uF electrolytic capacitor. Watch polarity!
36. Install U3, the 7808 voltage regulator. You will want to 
bend the center lead out and orient the part so that the 
writing on the front of the part faces the outside of the board. 
Solder all three leads. 
37. Install C15, the last 10uF electrolytic capacitor. Again, be 
sure to orient the cap as the silkscreen shows. 
38. Install the battery connector by soldering the black wire 
into the hole marked (-), and the red wire into the hole 
marked (+). 
39. Install J4, the power jack.
Well, it looks as if we finished our new headphone amplifier! 
Now would be a good time to check out your assembly for any 
mistakes. Check all of your solder joints for cold solder 
connections, and then check all of your traces and pads for any 
solder bridges. Last of all check the orientation of all your parts 
against the parts layout diagram.