# Meowsic Cat Piano Line Out

## Overview

![](https://cdn-learn.adafruit.com/assets/assets/000/118/684/medium800/hacks_IMG_1291_copy.jpg?1677046601)

https://youtu.be/a1ofn3EhtS4

The Meowsic cat piano is amazing, but a bit too quiet. I knew I had to give it a line out so it could be heard meow-meow-meowing far and wide, and enhance the sounds with guitar effects pedals!

This mod is based on the circuit found [here](https://www.instructables.com/Meow-Keyboard-Output-Jack/), with some adjustments to parts and techniques.

Don't have a Meowsic Cat Piano? That's OK, this can also be a helpful guide for anyone wanting to add a line out to other sound toys.

## Parts
### Meowsic Cat Piano

Made by [B. Toys](https://mybtoys.com/shop/meowsic/), available at Target and other resellers online.

&nbsp;

![hacks_meowsic.jpg](https://cdn-learn.adafruit.com/assets/assets/000/118/609/medium640/hacks_meowsic.jpg?1676859596)

Select one of the following three audio connectors depending on whether you will use the project with a 1/8" / 3.5mm or 1/4" plug.

### Panel Mount 1/8" / 3.5mm TRS Audio Jack Connector

[Panel Mount 1/8" / 3.5mm TRS Audio Jack Connector](https://www.adafruit.com/product/3692)
What _is_ this TRS bit? **T** urtle **R** ock **S** tudios? **T** ransmission **R** aman **S** pectroscopy? Not quite, more...

In Stock
[Buy Now](https://www.adafruit.com/product/3692)
[Related Guides to the Product](https://learn.adafruit.com/products/3692/guides)
![Panel Mount 1/8 inch / 3.5mm TRS Audio Jack Connector](https://cdn-shop.adafruit.com/640x480/3692-01.jpg)

### Panel Mount 1/8" / 3.5mm Mono Connector

[Panel Mount 1/8" / 3.5mm Mono Connector](https://www.adafruit.com/product/4361)
Pipe audio in or out of your project with this very handy panel mount audio jack. It's a mono jack with a disconnect pin so you'll get a ground sleeve pin, a left tip pin and a pin that will be disconnected when a jack is inserted. You can use any **3.5mm audio cable**...

In Stock
[Buy Now](https://www.adafruit.com/product/4361)
[Related Guides to the Product](https://learn.adafruit.com/products/4361/guides)
![Panel Mount 1/8 / 3.5mm Mono Connector](https://cdn-shop.adafruit.com/640x480/4361-00.jpg)

### Part: 1/4" Panel Mount Jack
quantity: 1
6.35mm (0.250", 1/4") - Headphone Phone Jack Mono Connector Solder Lug
[1/4" Panel Mount Jack](https://www.digikey.com/en/products/detail/cliff-electronic-components-ltd/CL1130A/25603868)

### Panel Mount 100K potentiometer (Breadboard Friendly)

[Panel Mount 100K potentiometer (Breadboard Friendly)](https://www.adafruit.com/product/1831)
This potentiometer is a two-in-one, good in a breadboard or with a panel. It's a fairly standard linear taper 100K ohm potentiometer, with a grippy shaft. It's smooth and easy to turn, but not so loose that it will shift on its own. We like this one because the legs are 0.2" apart...

In Stock
[Buy Now](https://www.adafruit.com/product/1831)
[Related Guides to the Product](https://learn.adafruit.com/products/1831/guides)
![Breadboard Friendly Panel Mount 100K potentiometer ](https://cdn-shop.adafruit.com/640x480/1831-01.jpg)

### Mini Panel Mount SPDT Toggle Switch

[Mini Panel Mount SPDT Toggle Switch](https://www.adafruit.com/product/3221)
This or that, one or the other, perhaps or perhaps not! So hard to make decisions these days without feeling like you're just going back and forth constantly. Deciding whether or not to use this mini toggle switch? That's the easiest decision you'll make all day!

This...

In Stock
[Buy Now](https://www.adafruit.com/product/3221)
[Related Guides to the Product](https://learn.adafruit.com/products/3221/guides)
![Angled shot of blue, mini, SPDT toggle switch.](https://cdn-shop.adafruit.com/640x480/3221-01.jpg)

### Through-Hole Resistors - 100K ohm 5% 1/4W - Pack of 25

[Through-Hole Resistors - 100K ohm 5% 1/4W - Pack of 25](https://www.adafruit.com/product/2787)
ΩMG! You're not going to be able to resist these handy resistor packs!&nbsp;Well, axially, they&nbsp;do all of the resisting for you!

This is a **25 Pack of 100K Ω Resistors.** More specifically, they are **carbon film** , through-hole...

In Stock
[Buy Now](https://www.adafruit.com/product/2787)
[Related Guides to the Product](https://learn.adafruit.com/products/2787/guides)
![Angled shot of 25 Through-Hole Resistors - 100K ohm 5% 1/4W.](https://cdn-shop.adafruit.com/640x480/2787-00.jpg)

### 10uF 50V Electrolytic Capacitors - Pack of 10

[10uF 50V Electrolytic Capacitors - Pack of 10](https://www.adafruit.com/product/2195)
We like capacitors so much we made a&nbsp;[kids' show about them.](https://www.youtube.com/watch?v=sy_G1oYRQmM)&nbsp; &nbsp;They're super handy and it's really helpful to have a variety lying around to pick and choose from.

<p...></p...>In Stock
[Buy Now](https://www.adafruit.com/product/2195)
[Related Guides to the Product](https://learn.adafruit.com/products/2195/guides)
![Pack of 10 through hole 10uF 50V Electrolytic Capacitors](https://cdn-shop.adafruit.com/640x480/2195-00.jpg)

### Anodized Aluminum Machined Knob - Black - 20mm Diameter

[Anodized Aluminum Machined Knob - Black - 20mm Diameter](https://www.adafruit.com/product/5527)
These compact and luxurious machined knobs look&nbsp;fantastic and have&nbsp;a nice feel, a perfect way to upgrade your rotary encoder or potentiometer. We hand-selected the best knobs for your project in different...

In Stock
[Buy Now](https://www.adafruit.com/product/5527)
[Related Guides to the Product](https://learn.adafruit.com/products/5527/guides)
![Angled shot of a black aluminum knob. A white triangle on top of the knob points at 5:00. ](https://cdn-shop.adafruit.com/640x480/5527-02.jpg)

### Adafruit Perma-Proto Mint Tin Size Breadboard PCB

[Adafruit Perma-Proto Mint Tin Size Breadboard PCB](https://www.adafruit.com/product/723)
Making a project that will fit into an "Altoids" Mint Tin? Put down that PCB shear and pick up a Perma-Proto in the new exciting minty shape!  
  
Customers have asked us to carry basic perf-board, but we never liked the look of most basic perf: its always crummy quality, with...

In Stock
[Buy Now](https://www.adafruit.com/product/723)
[Related Guides to the Product](https://learn.adafruit.com/products/723/guides)
![Angled shot of Adafruit Perma-Proto Mint Tin Size Breadboard PCB](https://cdn-shop.adafruit.com/640x480/723-03.jpg)

- [Next Page](https://learn.adafruit.com/meowsic-line-out/mod-the-meowsic.md)

## Featured Products

### Panel Mount 1/8" / 3.5mm TRS Audio Jack Connector

[Panel Mount 1/8" / 3.5mm TRS Audio Jack Connector](https://www.adafruit.com/product/3692)
What _is_ this TRS bit? **T** urtle **R** ock **S** tudios? **T** ransmission **R** aman **S** pectroscopy? Not quite, more...

In Stock
[Buy Now](https://www.adafruit.com/product/3692)
[Related Guides to the Product](https://learn.adafruit.com/products/3692/guides)
### Panel Mount 100K potentiometer (Breadboard Friendly)

[Panel Mount 100K potentiometer (Breadboard Friendly)](https://www.adafruit.com/product/1831)
This potentiometer is a two-in-one, good in a breadboard or with a panel. It's a fairly standard linear taper 100K ohm potentiometer, with a grippy shaft. It's smooth and easy to turn, but not so loose that it will shift on its own. We like this one because the legs are 0.2" apart...

In Stock
[Buy Now](https://www.adafruit.com/product/1831)
[Related Guides to the Product](https://learn.adafruit.com/products/1831/guides)
### Mini Panel Mount SPDT Toggle Switch

[Mini Panel Mount SPDT Toggle Switch](https://www.adafruit.com/product/3221)
This or that, one or the other, perhaps or perhaps not! So hard to make decisions these days without feeling like you're just going back and forth constantly. Deciding whether or not to use this mini toggle switch? That's the easiest decision you'll make all day!

This...

In Stock
[Buy Now](https://www.adafruit.com/product/3221)
[Related Guides to the Product](https://learn.adafruit.com/products/3221/guides)
### Through-Hole Resistors - 100K ohm 5% 1/4W - Pack of 25

[Through-Hole Resistors - 100K ohm 5% 1/4W - Pack of 25](https://www.adafruit.com/product/2787)
ΩMG! You're not going to be able to resist these handy resistor packs!&nbsp;Well, axially, they&nbsp;do all of the resisting for you!

This is a **25 Pack of 100K Ω Resistors.** More specifically, they are **carbon film** , through-hole...

In Stock
[Buy Now](https://www.adafruit.com/product/2787)
[Related Guides to the Product](https://learn.adafruit.com/products/2787/guides)
### 10uF 50V Electrolytic Capacitors - Pack of 10

[10uF 50V Electrolytic Capacitors - Pack of 10](https://www.adafruit.com/product/2195)
We like capacitors so much we made a&nbsp;[kids' show about them.](https://www.youtube.com/watch?v=sy_G1oYRQmM)&nbsp; &nbsp;They're super handy and it's really helpful to have a variety lying around to pick and choose from.

<p...></p...>In Stock
[Buy Now](https://www.adafruit.com/product/2195)
[Related Guides to the Product](https://learn.adafruit.com/products/2195/guides)
### Anodized Aluminum Machined Knob - Black - 20mm Diameter

[Anodized Aluminum Machined Knob - Black - 20mm Diameter](https://www.adafruit.com/product/5527)
These compact and luxurious machined knobs look&nbsp;fantastic and have&nbsp;a nice feel, a perfect way to upgrade your rotary encoder or potentiometer. We hand-selected the best knobs for your project in different...

In Stock
[Buy Now](https://www.adafruit.com/product/5527)
[Related Guides to the Product](https://learn.adafruit.com/products/5527/guides)
### Panel Mount 1/8" / 3.5mm Mono Connector

[Panel Mount 1/8" / 3.5mm Mono Connector](https://www.adafruit.com/product/4361)
Pipe audio in or out of your project with this very handy panel mount audio jack. It's a mono jack with a disconnect pin so you'll get a ground sleeve pin, a left tip pin and a pin that will be disconnected when a jack is inserted. You can use any **3.5mm audio cable**...

In Stock
[Buy Now](https://www.adafruit.com/product/4361)
[Related Guides to the Product](https://learn.adafruit.com/products/4361/guides)
### Adafruit Perma-Proto Mint Tin Size Breadboard PCB

[Adafruit Perma-Proto Mint Tin Size Breadboard PCB](https://www.adafruit.com/product/723)
Making a project that will fit into an "Altoids" Mint Tin? Put down that PCB shear and pick up a Perma-Proto in the new exciting minty shape!  
  
Customers have asked us to carry basic perf-board, but we never liked the look of most basic perf: its always crummy quality, with...

In Stock
[Buy Now](https://www.adafruit.com/product/723)
[Related Guides to the Product](https://learn.adafruit.com/products/723/guides)

## Related Guides

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