Robuta

https://www.electronicdesign.com/technologies/embedded/article/21749879/data-acquisition-circuit-collection
This app note contains a collection of circuits created from 8-, 10-, and 12-bit data acquisition components for applications such as battery monitoring,...
data acquisitioncircuit collectionelectronic design
https://opensea.io/collection/closed-circuit
fully on-chain art by ripcache
closed circuitethcollectionopensea
https://github.com/GuitarML/GuitarPedalPCBs
Collection of KiCad circuit board designs for guitar pedals you can build yourself. - GuitarML/GuitarPedalPCBs
circuit boardgithubcollectionkicaddesigns
https://www.nxp.com/company/about-nxp/smarter-world-videos/NXP-RF-CIRCUIT-COLLECTION-OVERVIEW
NXP has released a digital library of over 400 RF reference circuits accessible on-demand. This collection addresses a wide range of fast-growing RF markets...
rf circuitcollection overviewnxpsemiconductors