
Fig 1: Board Position Copper Side Up.

Fig 2: Lines Showing Connections.
Fig 3: Circuit Connections Made Thicker. Board Ready to Etch.

Fig 4: Component Side View
|
Resistors |
|||||||
|
100 K |
Brown |
Black |
Yellow |
||||
|
100 K |
Brown |
Black |
Yellow |
||||
|
100 K |
Brown |
Black |
Yellow |
||||
|
22 K |
Red |
Red |
Orange |
||||
|
18 K |
Brown |
Grey |
Orange |
||||
|
16 k |
Brown |
Blue |
Orange |
||||
|
15 K |
Brown |
Green |
Orange |
||||
|
12 K |
Brown |
Red |
Orange |
||||
|
11 K |
Brown |
Brown |
Orange |
||||
|
9.1 K |
White |
Brown |
Red |
||||
|
8.2 K |
Grey |
Red |
Red |
||||
|
Other Components |
|||||||
|
Capacitor (Orange, Green, or Burgundy with 2 wires) |
|||||||
|
Photoresistor (Flat orange/white disk with 2 wires) |
|||||||
|
Battery Clip (Red and Black Wires) |
|||||||
|
IC Socket |
|||||||
|
8 Potentiometers (Black disk or Blue rectangles, 3 wires) |
|||||||
|
Speaker |
|||||||
|
Wire bundle |
|||||||
|
9 V Battery |
|||||||
Fig 5: Keyboard Component List

Fig 6: Keyboard Schematic