Recent content by Ulfar4

Graphite powder.

I never had luck with any of the anti-static sprays. They always went bad after some time. I settled on rubbing graphite onto the membrane, and the balance is still good after a few years. The downside is that it is a pain to apply uniformly, and it is very hard to get rid of free particles...

I am selling my Kublai Khan headphones. The condition is very good. All accessories are included (original box, case, leather case, and pouch).The original cable had a broken jack, so it has been replaced with a new one (3.5mm jack). Always stored in the leather case. The reason for selling...

I was watching a video that shows the Audeze factory, and this caught my attention: the membrane of the CRBN model.

anto22: You should try to build standard e-stat headphones first so you will know what this is about. Than you maybe recognize that the wireless e-stat is no-go. The main thing is that e-stats must be open back design otherwise it doesn't work well. My suggestion is to build standard headphones...

I believe that you must use Eagle from Fusion360 licence. Or it is merged into one program now? You can find lot of guides on Youtube. Free alternative is KiCad, you can do it in every PCB layout program, but it can be sometimes tricky to use it for designing stators and spacers.

mattmatt: FR-4 is from JLCpcb. Mylar is 3um from ebay, but it is few years back I bought it. As for the stretching, I am doing it by hands on flat glass with tape. chinsettawong: Aliexpress sometimes have weird behavior. Anyway, for others or when the link will be dead:

Sure...

After long time I made new E-stats, this time with oval shape. The dimmensions of the cup are 110x90mm. Active area of the diaphragm is 75x55mm. Stators are FR-4 as always, this time 0.6mm thick with ENIG surface. Spacers are also 0.6mm. I tried some graphene nanoparticles treatment for cars...