Question on the power supply connection to the pcb for etherwave

Very nicely done. The copper etch looks perfect, you got skills. Is it cold toner transfer?

I ordered the din socket so I know the pin configuration. Amazingly Mouser carries it.

What am I missing, why is the board black?

Christopher

dewster thanks for the tip.
oldtemecula before I used pcb with photosensitive film exposing it with ultraviolet light for the development using a bromograph after which immersed in iron chloride acid.
What am I missing, because the card is black? I don't understand what you meant.
Sorry my english but i use google translator.

Good evening to all the members of theremin world, I wanted your opinion on how my theremin sounds, I attach audio in mp3 recorded with the mobile phone using a small amplified speaker. https://drive.google.com/open?id=1BCJ4PqqF3D1fql6L53cSnG5Bg_AuTZEI  I adjusted the antenna pitch to about 60 cm.
Thanks in advance

Right. That's how it should sound.

Thank you very much Valery, now the last thing I miss is learning to play it ! 

Thank you very much Valery, now the last thing I miss is learning to play it !

I'm glad to see you back. I'm going to return to this project recently. I see that you have finished the production. Can you provide PCB manufacturing documents and BOM. I really want to get an EW. If you can, please send it to my email: 405006969@qq.com

Hi WS786873 if it is possible and the moderators allow me, I can make my project available to everyone in Eagle format.I wait for an answer before proceeding.

I added a green led to my cabinet

In this picture you can see how I put the grounding cable directly into the socket with the power supply and connecting it to the audio jack, this is because I don't have a grounded amplifier.

The small change to the jack is to be able to hear audio in stereo