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MP3 Mono Amplifier V2.0

3.33
Exclusive to Kitronik
Teaching Notes
Key Stage 3
MP3 Mono Audio Amplifier Kit: can be used with any Personal Stereo Equipment, is supplied with a PP3 Clip and a Jack Cable, and uses a LM386 Audio Amp IC.

Availability: In Stock.

Code1+ 5+ 50+
2154£3.33
(£3.996 incl VAT)
£2.39
(£2.868 incl VAT)
£2.09
(£2.508 incl VAT)
OR

Version 2 of our Mono Amplifier Kit can be used with any personal stereo equipment, including MP3 players.

It uses an LM386 audio amplifier IC which can output 1.25W of power.

The kit is supplied with a pre-built jack cable and a PP3 battery clip, and can run off any voltage from 4 to 12 Volts (Absolute Maximum 15V).

Features:

  • Great value electronic project kit.
  • Works with any stereo equipment.

Contents:

Dimensions:

  • PCB Length: 45.5mm.
  • PCB Width: 35.5mm.

Requires:

Resources:

This kit is supplied in a grip seal bag. It is also available in retail packaging. For more details on this version click here, and a version with a Perspex case included, for more details on this version click here.

Click here to find out more about Autodesk.

Free samples:

Teachers can order a sample of this kit (one per school) here. You will need to select the kit from a list of all the sample kits; the stock code for this kit is 2154.
Note: this service is only offered to schools for evaluation purposes only.

Buy British:

 This kit is designed and manufactured in the UK by Kitronik.

Physical characteristics:

  • PCB Length: 45.5mm.
  • PCB Width: 35.5mm.

Electrical characteristics:

  • Voltage Nominal: 9V.
  • Voltage Range: 4 - 12V (Absolute Maximum 15V).
  • Typical Standby Current: 4mA.
  • Current Max at Nominal Voltage: 70mA.
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Mono Amplifier Kit – Balcarass School
Jeff Draisey, head of D&T at the Balcarass School in Cheltenham, sent us these Year 8 70's themed Mono Amplifier Projects. We think you'll agree the students not only did a great job with the research, but produced some excellent looking results too!
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MP3 Mono Amplifier Kit – Milton Abbey School
James Ratcliffe, Director of Design & Technology at Milton Abbey School sent us these great examples of Year 10 work based around our MP3 Mono Amplifier Kit.
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Guest Post: Dixons Trinity Academy Product Design Build Concrete Speakers
This week we have a guest post brought to you by Phil Wickham of Dixons Trinity Academy, whose class have made some concrete speakers using our PIC Controlled Mono Amp Kit.
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MP3 Docking Stations – Northfield School
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!
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Mono Amplifier Kits – Milton Abbey School
Mono Amplifier Kit examples sent in by James Ratcliffe at the Milton Abbey School in Dorset.
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Gallery Mono Amplifier – Barry Comprehensive School
MP3 Mono Amplifier Kit by year 10 Product Design students at Barry Comprehensive School.
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Gallery Mono Amplifier – Meole Brace School
MP3 Mono Amplifiers by year 9 students at Meole Brace School.
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Gallery Amplifier Designs – Archbishop Sentamu Academy
Amplifier cases designed by students at Archbishop Sentamu Academy.
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Gallery Amplifier Designs – St Mary’s Catholic High School Astley
Amplifier designs by Mr Peachey's students at St Mary's Catholic High School Astley, Manchester.
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Gallery Mono Amplifier Kit with Light – Rickmansworth School
Mono Amplifier Kit with light by a student at Rickmansworth School.
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Gallery Mono Amplifier Training Aid – Eggar’s School
Mono Amplifier Training Aid by Eggar's School.
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Gallery ‘Secret Amplifier’ – Sir Robert Pattinson Academy
'Secret Amplifiers' by year 8 students at Sir Robert Pattinson Academy.
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Gallery MP3 Mono Amplifiers – Humphry Davy School
Mono Amplifier Designs by year 9 students at Humphry Davy School.
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Gallery MP3 Amplifiers – Ibstock Community College
MP3 Amplifiers designed by year 9 students at Ibstock Community College.
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Gallery Mono Amplifiers – Meadows Community School
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Video MP3 Mono Amplifier Kit Demo & Explanation
MP3 Mono Amplifier Project Kit demo and explanation video.
Amplifier Case
Free Laser Cut Perspex Amplifier Case Resources
This resource has been produced to provide a great way for you to create cases for our very popular MP3 Mono Amplifier V2.0 Kit and our High Power Stereo Amplifier Kit.
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Amplifier/Speaker Case 3D Printing Resources
This resource has been designed to show how you can use our Mono and stereo amplifier module kits as the basis for a 3D printing project.
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How To Connect A PSU To Your Mono Amplifier Kit
Learn how to connect a PSU to your Kitronik Mono Amplifier Kit in our easy to follow tutorial.

Questions:

Posted by Carl Webb, Thursday, 22 September 2016 on product MP3 Mono Amplifier V2.0

Question:

Therefore we must have to old version. V1.2 on board. It has six capacitors and three resistors. the resistors are not the same as the factsheet you directed me to. have you got the old one? have we been sent the old chips? Thanks/

Answers:

Posted by Fnfjfj, Tuesday, 20 September 2016 on product MP3 Mono Amplifier V2.0

Question:

What are the functions

Answers:

  • Posted by Michael Lockhart on Tuesday, 20 September 2016

    Hi, The function is to amplifier an MP3 player our similar, and you can create a design to house the circuit in such as what can be viewed in the ‘Media’ tag in the following link, https://www.kitronik.co.uk/2154-mp3-mono-amplifier-v20.html

Posted by Malaika, Wednesday, 14 September 2016 on product MP3 Mono Amplifier V2.0

Question:

Who is it made for and why (age appropriate for).

Answers:

  • Posted by Michael Lockhart on Wednesday, 14 September 2016

    Hi Malaika, The mono amplifier is aimed at key stage 3 and above, so approximately aged 11 upwards. However if the child is competent then there isn’t a reason why a younger person couldn’t make this kit (with supervision). We aim to have a range of kits suitable for different age groups, because of the number of components and the slightly more difficult build than other kits and as such the kit falls into the intermediate range of kits.

Posted by Carl Webb, Monday, 12 September 2016 on product MP3 Mono Amplifier V2.0

Question:

We use the Mono amplifier kit. It seems the batch we currently have is a different PCB with slightly more components. Therefore the instruction sheets on your website are incorrect for this board. The pcb says v1.2 on it. Are there instruction sheets for this one? Why are there two versions? Thanks.

Answers:

  • Posted by Michael Lockhart on Monday, 12 September 2016

    Hi Carl, The reason for the change is that the chip used on the old mono amp kit (2115) became obsolete, as such a new chip was sourced but this required a slightly different board design. As such we moved from the old version to the new version in the 2014/2015 catalogue (code 2154). Please be aware that any of the old amplifier chips won’t work in this new build. The build instructions for the new version can be found here, https://www.kitronik.co.uk/pdf/2154_mono_amp_essentials_2_2.pdf

Posted by Campbell Clark, Tuesday, 23 August 2016 on product MP3 Mono Amplifier V2.0

Question:

I too have found that there is a lot of feedback with this particular board. I used the older design and feedback did not seem to be a problem.

Answers:

  • Posted by Michael Lockhart on Tuesday, 23 August 2016

    Hi Campbell, With regards to the feedback and static you are getting this is likely to be an issue with either a solder joint of a connection with the input or output cable. We have tested this board with different versions of phones and the board performs the same across all of the devices.

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