This amplifier kit can output up to 15W per channel into a pair of high quality speakers. The kit is capable of producing a very loud, high quality stereo sound. The product includes all the components required to build the PCB, but not a power supply, speakers or cable to connect it to audio equipment. A complete version with the speakers, power supply and audio cable is available as a complete kit.
It features a power LED, on / off switch and volume control.
This kit includes:
- 1 x Printed circuit board
- 1 x TDA7297 audio amplifier IC
- 1 x Heat sink
- 1 x M3 nut and bolt
- 1 x 10Kohm dual potentiometer
- 2 x 47Kohm resistors
- 1 x 1Kohm resistor
- 1 x 1N5400 diode
- 1 x Blue LED
- 1 x 470uF capacitor, electrolytic
- 1 x 10uF capacitor, electrolytic
- 1 x 100nF capacitor, ceramic disc
- 2 x 220nF capacitor, ceramic disc
- 1 x Right angle PCB mounting power switch (high current)
- 3 x Two way terminal blocks
- 1 x Panel mounting DC power socket
PCB dimensions: 77.5mm x 59mm. Four mounting points are available, one in each corner.
This kit requires soldering.
Click here to download the essential information 
Click here to download the full teaching resources
Note: The heat sink will become hot when the amplifier is used at a high volume for long periods of time. For the heat sink to work at its best it should be mounted in a well ventilated case.
You may also wish to buy some of the following items: (if you are buying all of them then it will be cheaper to buy the version with all the parts)
Douglas Dawson –
My old amplifier died, and I was reduced to playing CDs through the TV sound system. This kit has sorted me out! The board was easy to build. I bought a ventilated metal box to house it, and the standard 12Volt power supply to drive it. The only tricky bit was drilling the holes in the case in the right places. I actually swapped the power switch for a toggle switch and wired it to the board. I dug my 50 year old KEF speakers from the loft, and suddenly I had great sound. There are no frills – no tone or balance controls but this is a simple bargain. Well done Kitronik!
Mike Tinker –
My 50 year old Goodmans 40/40 Stereo hifi amp died the other month (electrolytic capacitor and output transistor failure) . Pre-amp and tone/filters were ok. Decided to take the power amp boards out and replace with this 15/15 w amp kit a sort of heart transplant!
Ok, so this doesn’t have as much power (but I don’t need it these ageing days-not playing heavy metal anymore lol).
This little amp has power to spare and a great simple build. Teamed up with my Pre-amp, it’s fantastic! Can recommend this to new and old experimenters. Brilliant design. Simple to build.