zsharpminor
requested changes for The Ear Buster ago
Hi, your README is incomplete. You need multiple images of your PCB, including PCB view, schematic view, and the rendered image. Additionally, please design a CAD case for this. Finally, make a BOM.csv file showing where your grant is going - and make sure you're showing all of your AliExpress cart items in your cart screenshot. Thanks!
kale
submitted The Ear Buster for review ago
kale
added to the journal ago
Fixed a few blueprints so that I can well, solder it!
This is it! The current board design!!
I believe it should work fine, considering I pretty much followed the official documentation for the LM386. Probably may need some more tweaks here and there, since I'm just using the default gain.
kale
added to the journal ago
Added some branding!
This is a really teeny tiny post because I forgot to include it in the previous thread but I put my favorite character on the board (Inuyasha) and the ear buster text.
kale
added to the journal ago
Decided to tackle a smaller project before finishing the MP3
I still do want to finish my MP3 player design, I've spent a few hours working on that project but I haven't updated the journal yet. Meanwhile, I'm going to start working on this headphone amp so I can pick up some knowledge on sound stage stuff and all that jazz. Also, I don't even have the tools to build the MP3 player! I need a hot air gun and all that other jazz, so through hole components should be more than fine.
I might need to filter out the audio better, will do that later.
To save time, I used page 10 from the LM386 schematic as a reference for designing the amp, and also so I don't blow it up haha!
I mean, the only thing really left for me to do is test it.
kale
started The Ear Buster ago
1/15/2026 10:27 PM - Decided to tackle a smaller project before finishing the MP3
I still do want to finish my MP3 player design, I've spent a few hours working on that project but I haven't updated the journal yet. Meanwhile, I'm going to start working on this headphone amp so I can pick up some knowledge on sound stage stuff and all that jazz. Also, I don't even have the tools to build the MP3 player! I need a hot air gun and all that other jazz, so through hole components should be more than fine.
I might need to filter out the audio better, will do that later.
To save time, I used page 10 from the LM386 schematic as a reference for designing the amp, and also so I don't blow it up haha!
I mean, the only thing really left for me to do is test it.
1/15/2026 10:33 PM - Added some branding!
This is a really teeny tiny post because I forgot to include it in the previous thread but I put my favorite character on the board (Inuyasha) and the ear buster text.
1/21/2026 - Fixed a few blueprints so that I can well, solder it!
This is it! The current board design!!
I believe it should work fine, considering I pretty much followed the official documentation for the LM386. Probably may need some more tweaks here and there, since I'm just using the default gain.