This Shops offer SDIY/electronic music kits (for part reseller check out this page)

 

http://www.thonk.co.uk  Euro/4u

http://www.munichen-audio.de  Euro

http://www.frequencycentral.co.uk/  Euro

http://www.oakleysound.com   MOTM/MU/Euro

http://synthcube.com/cart  all formats

http://www.cgs.synth.com – ken stone

http://electricmusicstore.com/collections/all    Buchla Pcbs

 

Standalone Effects

https://pcbgrinder.com/index.php?route=common/home  >  GSSL compressor and other Studio gear like 500er series

https://www.don-audio.com/Startseite   >  High Effects Parts for compressors, VCA and more