DIY CD Player Power Supplies

I have finished all three mixer boards and they are ready to ship. I was finally able to get some time to work on my on going (three years now) DIY CD player. I tried etching these power supply boards my self and they turned out OK but I wanted them to look good.

These were the first two boards I had done by an outside company and I made some mistakes. Putting text on the copper layer being the biggest issue.

These are simple linear regulated power supplies, nothing special at all. 7805, 7905, etc. There are some parts missing, that's due to missing hardware for the heatsinks. There is also a resistor missing for an LED that I have.

I have the new DAC board mostly done so hopefully I will have that posted and working. Now I just need to hook up some AC and make sure these things work.

Mic Mixer, Take Two

I was having some weird volume control issues and realized I messed a couple things up. Made the corrections and the new boards arrived today. Glad to say everything works beautifully now.

I am working on an MP3/mic mixer/power amp board for the same client that will include this whole design in it. I am almost finished with doing the board layout. Once that is done its just a matter of ordering parts and making sure that I have everything connected properly.

I will try to do weekly posts. They should be a little easier to do since things are rolling on the contract design side as well as the personal project side. I will be ordering some heatsinks for the CD Player power supplies and will be testing those soon. Check back for updates.