How to Pitch Mod a Meowsic!

[@buffcol]

I just received my LTC1799. Looking forward to modding this weekend

[@videogames8261]

the sky is split, woe be upon us

[@po8aster]

I have always said that 😸

[@sivvitytech3118]

I wish somebody could do this to mine. I’ve always wanted to modernize toy like that

[@Asian_Caleb]

OK Housecat!

[@po8aster]

Yeah, I'm a big fan (if it wasn't obvious 😸)!

[@ToysintheStatic]

Awesome

[@FurbyGaming125]

0:18

[@aidensherman6146]

Thank you so much!!

[@MichaelAdams-es5nq]

would it be possible to add this into a guitar too? i’m planning on doing this with my keyboard but you gave me the idea of putting it in my jazzmaster lol.

[@po8aster]

You could put it into a guitar pedal with an oscillator in it (Simon the Magpie has a few videos on this), but since guitars are pretty much completely passive, it wouldn’t do anything to the guitar signal directly as far as I know.

[@chasetimmons]

Could you explain what it means to “jumper the DIV pin to the V+”? I kinda glossed over this step because I didn’t understand what it meant. Everything still seems to be working except the pitch isn’t able to be adjusted with the potentiometer. Would this issue be due to skipping the step mentioned or possibly due to another error? I’m just trying to get into circuit bending so I apologize if this is a basic issue. Thank you for making this tutorial!

[@po8aster]

Sure! Short version: use a wire/bit of component leg/etc to connect the hole labeled DIV to the hole/pin. Also, make sure to cut the trace on the back with the Scissor icon (that usually connects DIV to GND). Long version: The DIV pin changes the speed range of the oscillator. When connected to GND (the way it comes) it oscillates at a much lower rate than when it is connected to V+. So it could be working, just not in the right range to change the pitch. Also, if you bridge the DIV to V+ without cutting the trace, it will just short to GND, so double check to make sure that’s cut! If you’re still having trouble, feel free to shoot me an email with pics etc, I’d be happy to take a closer look!

[@chasetimmons]

@@po8aster I had a chance to work on this again and I’m happy to share that it’s working perfectly! Thank you so much for the help!

[@po8aster]

Glad to hear it's up and running! @@chasetimmons

[@meatiershower7317]

my board looks different from this one... how do i check the points(?) to find where to solder the v+ and ground wires?

[@po8aster]

They may have updated since I made this video. Feel free to email some pictures and I'd be happy to take a look! For checking the board, just use a multimeter to read voltage across the two points (look for where the power switch and battery wires connect to the board), but happy to look at that as well!

[@meatiershower7317]

thanks I'll double check with the multimeter. theoretically though it should just be on the board opposite side from where the battery wires go? is there a reason I couldn't just solder them directly to the battery wires or housing?

[@po8aster]

@@meatiershower7317 The main reason is just to find easy to solder points that are only on when the main power is on to prevent battery drain. But the module doesn’t pull much power so you definitely could go straight to the battery connectors if you’re using rechargeable batteries/aren’t worried about drain.

[@theeferret4115]

so anyone know where to pick up a LTC1799 since that link is no longer working?

[@po8aster]

Thanks for the heads up! I’ll get that fixed once I’m back home. In the meantime, feel free to email me; I’d be happy to get you set up while I’m figuring out what’s wrong with the website

[@madnoodler]

I'm probably looking for one of those too. I have the red ones from the UK. I found that going from +"output to c13 near the volume buttons. Also probing around from c13 there's some wild distortion on the top pin of the 8 legged IC