Mono Amplifier Essentials
www.kitronik.co.uk/2154
Build Instructions
Before you start, take a look at the Printed Circuit Board (PCB). The components go in the side with the writing on
and the solder goes on the side with the tracks and silver pads.
Start with the three resistors:
The text on the PCB shows where R1, R2 etc go.
Ensure that you put the resistors in the right place.
PCB Ref
Value
Colour Bands
R1
4.7k
Yellow, purple, red
R2 & R3
10Ω
Brown, black, black
Solder the Integrated Circuit (IC) holder into IC1. When putting this into the board, be sure to get
it the right way around. The notch on the IC holder should line up with the notch on the lines
marked on the PCB.
There is one ceramic disc capacitor which should be soldered in to C1 on the PCB. The capacitor should
be marked ‘473’. It does not matter which way around it goes.
The other two capacitors are electrolytic capacitors, they are both marked 100uF. Place these two
capacitors in to the board where it is labelled C2 and C3. Make sure the device is the correct way
around. The capacitors have a ‘-’ sign marked on them which should match the same sign on the
PCB.
The PP3 battery clip (shown right) should be attached to the power connection. This is the
central two pads and can be identified by the word “Power” on the PCB. Connect the red wire to
‘+’ and the black wire to ‘-’. The wires should be fed through the strain relief hole before being
soldered into place.
PLACE RESISTORS
1
SOLDER THE IC HOLDER
2
SOLDER THE CERAMIC DISC CAPACITORS
3
SOLDER THE ELECTROLYTIC CAPACITORS
4
CONNECT THE POWER WIRES
5
