Our pre-built version of our stereo audio amplifier kit allows you to focus more on product design.
The stereo amplifier kit is supplied with all the resistors, capacitors & IC holder fitted. Students just need to finish it by connecting the jack lead, speakers & power clip to the board.
It can then be used with any personal stereo equipment, including MP3 players. It uses a NJM2073D audio amplifier IC which can output 1W per channel. The kit is supplied with two speakers and a pre-made jack plug.
It has a PP3 battery clip and can run off any voltage from 2 to 15 volts. Output power at 9V is 1W per speaker.
It works nicely off a 9V battery (not supplied) or if you want to run it of the mains why not try our 12V wall power unit.
Note: You will only have to use the build instruction to connect the jack lead, power lead and speakers.
- 1W per channel stereo amplifier.
- 1 x Stereo Amp Cable.
- 1 x PP3 Battery Clip Lead (Heavy Duty).
- 2 x 8 Ohm 66mm Speakers.
- 1m Figure 8 Speaker Cable 2x (7x0.18mm).
- 1 x Stereo Amplifier PCB
Note: The following components have been pre-assembled and soldered onto the Stereo Amplifier PCB.
- 1 x NJM2073D Stereo Amplifier IC.
- 1 x 8 Pin IC Holder.
- 2 x 10K Resistors.
- 2 x 4.7R Resistors.
- 2 x 100K Resistors.
- 2 x Ceramic Capacitor, 50V, 100nF.
- 2 x Electrolytic Capacitors, 16V, 470uF.
- 2 x Electrolytic Capacitors, 16V, 100uF.
- 1 x Electrolytic Capacitor, 16V, 10uF.
- PCB Length: 58mm.
- PCB Width: 35mm.
- Either: 1 x Zinc Chloride PP3 Battery.
- Or: 1 x 12V Wall Power Unit and 1 x 2.1mm PCB Mount DC Socket.
- Soldering Iron.
- Wire Cutters.
- Wire Strippers.
- Click here to download the essential information.
- Click here to download the full teaching resources.
- Click here to download Autodesk files for this product.
- 3D CAD Files.
- Click here to find out more about Autodesk.
- NJM2073 Dual Low Voltage Power Amplifier IC Datasheet.
This product is also available in retail packaging making theman idealgift. Click here to view the retail version.
This kit is designed and manufactured in the UK by Kitronik.
- PCB Length: 58mm.
- PCB Width: 35mm.
- PCB Component Count: 21.
- Voltage Nominal: 9V.
- Voltage Range: 2V - 15V.
- Standby Current: 7.5mA.
- Current Max at Nominal Voltage: 180mA.
Steve Tucker the Faculty leader for Design and Technology at The James Hornsby School in Basildon in Essex sent us these fantastic images of student stereo amplifier designs.
Northfield School's D&T Department (@Northfield_DT) have shared these MP3 docking stations with us on Twitter. End of year assessments - DONE - great work!
Stereo Amplifier Kit examples sent in by James Ratcliffe at the Milton Abbey School in Dorset.
MP3 Stereo Amplifier Kit by A Level Product Design students at Barry Comprehensive School.
Stereo Amplifiers by AS Level students at Richmond upon Thames College.
A range of Stereo Amplifier designs by year 10 students at Meadows Community School, Chesterfield.
Stereo Amplifiers designed by 6th form students as part of their A Level Product Design course at Audenshaw School.
A video of us comparing our Amplifier Kits taken from our Ask Kitronik Live event 2012.
Where are the volume and on/off pieces? Are they separate? Does a battery box come provided and if so how big is it?
Posted byon Friday, 16 September 2016
Hi Luke, The stereo amp kit doesn’t have a volume control one, however you can add one by using a dual swipe potentiometer and connecting one side to the source input signal, the other side to ground and the middle to the input on the PCB. There is a section on page 4 in the following document which shows how to add a power switch to the circuit, https://www.kitronik.co.uk/pdf/2136_stereo_amplifier_essentials_2_0.pdf. Lastly the kit doesn’t come with a battery cage as it can be powered from a 9V PP3 battery, but it can run on a voltage range of 2-15V’s.
I have bought this kit, but I do not know how to construct the rest of the pieces. Are you supposed to cut wire for the speakers in half, or does the kit come with 2 and I'm missing a wire?
Posted byon Tuesday, 23 February 2016
Hi James, the kit is supplied with 1m of twin cable, this is to be cut in half to provide connections for both speakers. See step 5 in the build instructions for more information on this, https://www.kitronik.co.uk/pdf/2136_stereo_amplifier_essentials_2_0.pdf
What diameter in mm are the speakers themselves. Im hoping for them to be 66mm. Thanks, Will :)
Posted byon Friday, 22 January 2016
The speakers used in this kit are 66mm in diameter, https://www.kitronik.co.uk/c3304-8-ohm-66mm-speaker.html
Hi there can i please get the pcb tarck design with the components its for my gcse project looking forward for your reply thanks zanfer
Posted byon Wednesday, 16 December 2015
There is a technical drawing within the essential information document, https://www.kitronik.co.uk/pdf/2136_stereo_amplifier_essentials_2_0.pdf which shows the layout of the circuit and how the components are connected together.
Which integrated Circuit do I need for the stereo amplifier 2136 as I have lost the original.
Posted byon Monday, 26 October 2015
The amplifier that is needed for the stereo amplifier is https://www.kitronik.co.uk/2944-tda2822m-stereo-amplifier-ic.html
Excl. VAT: £25.00 Incl. VAT: £30.00
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