-[Doepfer's Eurorack Construction Details](http://www.doepfer.de/a100_man/a100m_e.htm): Measurements for Panels etc.
-[Doepfer's DIY Page](http://www.doepfer.de/DIY/a100_diy.htm): Some useful basic circuits
-[SDIY.org](http://www.sdiy.org/): A big collection of sdiy circuits
-[Eliott Sound Products](http://sound.whsites.net/projects.htm): A hifi focused collection of circuits and explainations (Amplifiers, EQs, Filters, Mixers, crossovers, Impedance, etc)
### Info
-[Modulargrid](https://www.modulargrid.net/e/modules/browser?SearchName=&SearchVendor=&SearchFunction=&SearchSecondaryfunction=&SearchTe=&SearchTemethod=max&SearchBuildtype=b&SearchLifecycle=&SearchSet=&SearchMarketplace=&SearchIsmodeled=0&SearchShowothers=1&SearchShow1u=0&order=newest&direction=asc): A extensive Collection of Eurorack Modules
-[DivKidVideo's youtube playlists](https://www.youtube.com/user/DivKidVideo/playlists): Non-boring reviews of eurorack modules + more
-[Raul's World of Synths youtube playlists](https://www.youtube.com/user/raulsworldofsynths/playlists): Extensive and long reviews and descriptions of most Doepfer Modules
### Shops
-[Thonk Online shop](https://www.thonk.co.uk/): A UK-based online shop for DIY-Kits, PCBs and Panels
-[Schneidersladen](http://www.schneidersladen.de/): The famous Shop in Berlin
-[Modular Synthesizer section at Thomann's](https://www.thomann.de/de/modulare_systeme.html)