Today the PCBs arrived and I had to start soldering one immediately. You will notice that the layout is similar to the Doepfer PSU. I tried to develop a complete own board but I have to admit that the design is compelling. The circuit uses the LM 317 and 337 adjustable regulators, they deliver the +12V and -12V, a ringcore transformer, a bridge rectifier and a few other parts. I tried several layouts with this parts, but the Doepfer layout is the best. I think they perfected it over the years. I know that my board is a copy though but it was still a lot of research needed to get all the parts together and finally create the layout. As I will need at least four PSUs, I decided to let the boards be produced by a company. But this only makes sense if you order more than 10 or 20 pieces. So I might have some “in stock”…
First I have to finish my prototype to see if everything works as expected. Then I will order the parts for the “serial” production.
This post was about the beginning of my DIY case journey. The next steps can be found in a more recent post as the journey continues.
Currently I am working on my own Eurorack case for my modular synth. The idea is to have a console like housing with four rows. I create everything from scratch. At the moment I am working on the PSU. The case will need four of them. The PCB layout is finished and I am waiting for the boards to arrive. The boards are based on the Doepfer PSU. I was lucky to get the original transformer, and all the other components. So I am quite confident to create a PSU which is as good as the Doepfer PSU. I will try to share all my experiences.Most of the parts were ordered at Distrelec. The transformer is from Top Print Electronic GmbH
If you want to read the full story, here are all the posts: