MP3 stereo amplifier kit
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Posted by
p gosling
on
Apr 4th, 2011
Do you do a sample of this kit?Can you let me know the size of the PCB and speakers?
Do you sell the board preassembled?
Thanks
Response by
geoffhampson
on
Apr 5th, 2011
Samples are available for schools, just click on the PCB icon at the bottom of the description.The Speaker is 66mm dia, 20mm deep and the PCB measures 58 x 55mm
This kit is available with all the components soldered, however requires the student to add the wires to the board. See related items (top left) for a link to the built version.
Posted by
geoffhampson
on
Apr 5th, 2011
Hi, I have recieved a leaflet from you with this product on the front, with it is also a picture of the boombox. Is this incorperated in the price or are they brought seperately?Thank You
Response by
geoffhampson
on
Apr 5th, 2011
The boombox is available separately. There is a link in the related items on the left of this page.You can also see some pictures of how schools have boxed the mono amplifier using other materials by clicking on the camera icon. We often find that if schools are short on time and want to focus on the electronics then they will use the boombox which can easily be personalised. If more time is available then students will be able to make their own enclosure, in this case it is often useful to have some boomboxes to hand as there will often be the odd student that hasn't managed to finish their case and still will get to take away a finished product.
Posted by
geoffhampson
on
Apr 5th, 2011
Hi, Can this kit be connected up with an iphone/pod dock (instead of the 3.5mm jack) and different speakers?
Response by
geoffhampson
on
Apr 5th, 2011
We have tried this kit with an iPod and whilst it does work there is no volume control on the iPod or on the amplifier kit so you get the music played at full volume which is inevitable distorted. I suspect that an iPhone will be the same (unless it has a 3.5mm jack) as the iPod, but haven't tried this. It would be possible to use two potentiometers to create a volume (and balance control). The speakers could be changed however the IC on the board will only drive 1W into each speaker so you wouldn't necessarily hear the benefit of using better speakers.
Posted by
geoffhampson
on
Apr 5th, 2011
Please can you tell me were the instructions are?
Response by
geoffhampson
on
Apr 5th, 2011
The teaching notes are supplied with the kit as an A5 printed booklet. School purchasing kits are also sent a resource CD which includes an electronic version of all our notes. A very cut down version can be downloaded for some products including this one, see description above
Posted by
geoffhampson
on
Apr 5th, 2011
I wish to order some spare micro chips for the sterio kits what type are they? and can i buy spares from you?
Response by
kevinspurr
on
May 19th, 2011
The IC used in this kit is a TDA2822M there is now a link to the product page for the chip, click on the text TDA2822M in the description at the top of this page.Please note this product is not in the 2010 / 2011 catalogue.
Posted by
Alan Murrell
on
Jun 22nd, 2011
Which is the best way to mount/secure the speakers, (they do not seem to have holes in the corners)?
Response by
geoffhampson
on
Jun 22nd, 2011
There are a number of ways that the speaker can be secured; here are some of the things I’ve seen done:Glue it in place.
Use a piece of material with an 18mm hole in it to clamp the back of the speaker in position. (A good solution for laser cut cases).
Use some self tapping screws to hold some wire across the edge of the speaker.
Posted by
matthew whitbread
on
Dec 12th, 2012
can i add leds to this board
Response by
geoffhampson
on
Dec 12th, 2012
Yes you can add an LED, there is an explanation of how to do this on the following page:http://www.kitronik.co.uk/resources/tutorials/how-to-add-a-power-switch-and-led-to-your
Posted by
Simon
on
Jan 25th, 2013
Whats the best way to add a volume control to this kit, in addition the the volume control on the MP3 player itself
Response by
geoffhampson
on
Jan 25th, 2013
We do a deluxe version of the stereo amplifier which includes a volume control, power LED, on/ off switch and optional DC jack plug, for product details see:http://www.kitronik.co.uk/products/project-kits/ic-based-kits/deluxe-stereo-audio-ampli
