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Welcome. I wanted to provide stripboard layouts I've made to help people new to electronics and even the more experienced get into different aspects of electronics.

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Thursday, 19 June 2014

Ellas Stylophone Stripboard Layout


I have a 2 year old niece called Ella and I wanted to make her something - so I thought I would make her a Stylophone.

NB: there were a couple of errors due to me somehow pressing the "up" button in "DIY layout editor" after I had built this but before I had rendered the image. these errors have been corrected

the original error was; the "tuning board" was listed as being connect to pin8 of IC2 - however it should be connected to pin 7 of IC2
I also missed out "R4" in the schematic (cause I drew the schematic after building it)







Me and Ella

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12 comments:

  1. Unknown23 June 2014 at 06:40

    Paul, this a a very cool project! Looking at the pictorial diagram, it appears that the tuning board is connected to pin 8 of IC2, but on the schematic diagram the tuning board is connected to pin 7 of IC2. Also I can't find R4 on the schematic. Please clarify. Thanks!

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    1. DrStevenson23 June 2014 at 10:12

      thanks for pointing that out - I did the schematic after I did the stripboard layout
      and I also must have nudged the up button before I rendered the stripboard image
      what I usually do - is do the stripboard, build it and then render it if it works so I must have nudged it
      needless to say Ella has been playing hers for a few days (and loves it)

      Delete
  2. ξεναγός νεκρόπολης10 July 2014 at 13:35

    hello Paul! i read your blog for months now and you are fantastic. i'm building guitar effects, and as time passes, i "need" to build more and more different things...like this one!i think it's a very fun build!
    i just a few questions.
    you have 7 "keys" which are the seven notes if i'm right yes?
    how do you tune those notes?
    you tune them by those trimmers right?
    and one more. how can i add the "black keys"too?
    just add some more keys?
    you are great man!
    thanks

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    Replies
    1. DrStevenson10 July 2014 at 14:49

      yeah - the trimmers tune each key and to add more keys just add more trimmers
      just make sure you wire them in order because I didn't and it took me ages to tune the dam thing.

      I'm glad you're branching out - many people just stick to the guitar effects which is fine but it's not the best
      way to learn things. when you build more and more things you start recognise how things work then you can
      design your own things!

      Delete
  3. ξεναγός νεκρόπολης12 July 2014 at 10:07

    thanks Paul!
    i'm too far from designing my own things but i hope some day i will!!!
    what did you use for keys? just pieces of copper?
    cause i thought i could take one big piece of copper, (the one for pcb drawing), and just draw the piano keys on it.
    thanks again man

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  4. ξεναγός νεκρόπολης21 July 2014 at 19:55

    hello man! this is for you!
    thanks a lot!

    https://www.youtube.com/watch?v=5LNS5lwK_n0

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  5. Anonymous16 October 2015 at 17:22

    Hey Paul. Great job here. I need this this thing. I play in a band in which we are 2 guitar players and sometimes we need some kind of (lo-fi) bassy drone to play over it. In needs to play real notes so I think that if I can tune this thing in quite low frequencies it'll be what I need.
    Is the "speaker out" of this synth able to be connected to a mixer instead of a speaker? Is there a way to add some "line output"? Is the "speaker out" of this synth able to be connected to a mixer instead of a speaker?
    Thanks a lot

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    Replies
    1. DrStevenson16 October 2015 at 17:43

      aye - it can go into a mixer or whatever really

      Delete
  6. craftyjam20 January 2020 at 01:16

    Idk if you still use this website, but I can't seem to get the vibrato to work, any ideas?

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  7. dje3 September 2025 at 23:42

    Hi Paul !

    I'm new on your blog : I'm building guitar effects for a few months now, and I recently felt the need to build different things... I found your project and fall in love with it !

    I built it with parts I had, so I had to replace the depth pot with a B500k pot, and the vibrato pot with a B250k one. Sadly the vibrato does not seem to work. Could it be because of the values I used ?

    For the VR3 (which seems to be a volume control for the speaker), I had to use a B2k pot. I use the stylophone with guitar pedals I built, on a guitar amp. The volume pot does not seem to work neither. Could it be because of the value I used ? Is it because of the guitar pedals and amp instead of a speaker ?

    I could have done some mistakes on the build too, but I double checked everything.

    I would really appreciate if someone could answer me, I could learn so much from guys like you !

    PS : the vibrato not working is my main concern. I would really like to understand if the kind of value changes I did, could make something not work the way it should. It would help me so much in my understanding of DIY !

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    1. dje4 September 2025 at 00:32

      And I just realized I omit to say that I used 10k resistors everywhere instead of 18k resistors. Could it be the problem ?

      Delete
    2. dje4 September 2025 at 00:40

      As far as I can understand the schematics, output of IC1 comes from pin 7 (pin 3 isn't connected to anywhere) and goes to IC2 via pin 5, through a 18k resistor. I'll try to replace the 10k resistor I used by a 18k one on this part to see if the vibrato then works !

      Delete

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