This project was inspired by JohnAudioTech on YouTube. It has been on my mind for years. I had previously bread boarded it and was genuinely surprised it actually worked. Go to his video here and get the schematic from him.
It is his design and his work and I lay no claim on it. I finally got to soldering this circuit together this summer and tested it.
It works just fine and I built a box to hold it. I got the file for the box at https://festi.info/boxes.py/IntegratedHingeBox?language=en I had to build it to fit the prototype PCB board I chose and the excess wire so, it's quite long proportionately. I added cut outs for the power, input and output connections.
The PCB is floating on top of the excess wire and not secured in place.
The LM386 is a single channel amplifier so I taped over the other headphone input wire in the box to insulate it.
I could make another one for the other channel. It could use a power on LED and shorter wires. I could also use a much smaller board. I need to work on my component placement. Ultimately, I might use this as my first PCB design project or not. I've got some other audio amplifiers that came in a set of ICs from Amazon that I will build first before deciding which one I want to spend my time and money on. I bought that box a few years ago and hope the chips are all good as some reviewers had claimed. I now recommend buying chips from reputable dealers such as Mouser or Digikey. The chip shortage has brought about people selling fake op amps and it could also be fake audio amplifiers. Information on the box will be in a laser cutter post.
I'm not sure how I can document in photos that this works. I'll have to spend some time thinking on that.
Happy Making!
Michelle
No comments:
Post a Comment
Thanks for leaving a comment! I'll get back to you ASAP but I've got a busy life