Seventh Circle Audio

Hi there,

I am a happy owner of a full SCA rack with various boards (2 x J99, 2 x N72, 2 x C84s, 2 x A12) and I am happy as larry, the unit is gold!

So it got me really into it, and I have started to dabble in the analogue circuitry design and I was very impressed with Tim's schematics and PCBs and I was wondering what software was used to design the circuits and layout the PCB boards?

Thanks again very much for creating such a set of great sounding microphone pres!

Regards!
- Crispin

We use Pulsonix, but you can get a hobbyist version called EasyPC. There are many others as well, be sure to check out the free version of Eagle.