Step 4 - Assemble Circuit
Insert components in circuit board, referring to the parts list and circuit board labeling. All soldering is to be done on the copper side of
the circuit board. Allow the soldering iron to warm up before starting. Once heated, proceed with soldering to the circuit board. Joints
should be shiny and isolated (don't bridge connections).
Use caution installing the two diodes and the one electrolytic capacitor (C5). These parts must be oriented correctly according to the
diagram.
Resistors:
R1 = 1,000 ohms = 1k
R2 = 1,000,000 ohms = 1 Meg
R3 = 1 Meg
R4 = 4.7k
R5 = 390k
Capacitors:
C1 = 0.01 uF
C2 = 0.1 uF
C3 = 22 pF
C4 = 0.001 uF
C5 = 1 uF
Diodes:
D1 = 1N4004 (the fatter, black one)
D2 = 1N4148 (the smaller, narrower one)
Chip:
IC1A = RC4558
Step 5 - Drill Case
Drill bit sizes:
In/out Jacks: 3/8 inch
Both Potentiometers: 5/16 inch
LED: 1/4 inch
Switch: 1/2 inch
DC Power: 1/2 inch
First, print out the provided drill template. It should be the same size as your case so that you can cut and tape it to remain centered
during the drilling process.
Then, drill pilot holes (using a 1/8" drill bit) at the indicated locations.
Finally, drill case as indicated in diagram, using the appropriate drill bit sizes.
