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2165b_large mono amp v3 pre built with wires

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Mono Amplifier V3.0 Pre-built

Easy Build
Exclusive to Kitronik
Teaching Notes
Key Stage 3
The Mono Amplifier Pre-built Kit is supplied with all of the resistors, capacitors, and IC holder fitted. Simply connect the Jack Lead, speaker and battery cage

Availability: In Stock.

Code1+ 5+ 50+
(£4.32 incl VAT)
(£3.108 incl VAT)
(£2.748 incl VAT)

Version 3 is the newest version of our best selling pre-built Mono Amplifier Kit that can be used with any personal stereo equipment, including MP3 players, making it an ideal kit choice for an amplifier case design project.

It uses an NCP2890 audio amplifier IC which can output 1.0W of power. The NCP2890 is an audio power amplifier designed for portable communication device applications such as mobile phone applications and PDAs. The IC also features an onboard Pop and Click at startup and closedown Noise Protection Circuit.

The kit comes pre-built and is supplied with a pre-built jack cable, an 8ohm 66mm speaker, and a AA battery pack and can run off any voltage from 2.5 to 4.5 Volts (Absolute Maximum 5V). For a full list of parts, see the Contents section below.

All that is required is to solder the jack lead, speaker & battery cage to the board and you are good to go.

Previous versions of this amp included a PP3 power connection and were designed to operate around 9V, V3.0 has been designed for use with 2 x AA batteries. There are several advantages to using AA batteries over PP3, they include; AA batteries are much cheaper, more readily available and will also last significantly longer than PP3 batteries, anything up to ten times longer.

This kit is also available in a kit version. For more details on this version click here.


  • Pre-built kit allows you to concentrate on product design rather than assembly.
  • Great value electronic project kit.
  • Works with any stereo equipment, including computers, phones, and tablets that can accept the jack lead.



  • PCB Length: 44.5mm.
  • PCB Width: 35.5mm.
  • PCB Height: 1.6mm.



This kit is also available in a kit version. For more details on this version click here.

Buy British:

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

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Physical characteristics:

  • PCB Length: 44.5mm.
  • PCB Width: 35.5mm.
  • x 4 Holes With Diameter: 3.3mm.

Electrical characteristics:

  • Voltage Nominal: 3V.
  • Voltage Max: 5V.
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