It's like being a C programmer, and someone asks you - "How do you declare a variable". You could try to explain, but it's not very interesting to answer such basic questions. If you don't even know where to buy electronic parts, you're not even at newbie level yet. You have not even started.
"Where do you get your parts?" is a lot more like "What editor do you use?" than "How do you declare a variable?". It's cool as hell to find a parts shop you never knew existed, or to find a useful component that Radio Shack sells, or to find a website which sells a drop-in solution for what you need.
I’ve actually built a huge number of circuits, read tons of books and learned how to program a PIC basic stamp. I fucking love this shit.
Then:
I had to do my own research and found that, no, these guys get some of their shit from the NYU Computer Store on 242 Greene St near Washington Square Park. It’s obvious since everyone in NYC uses Arduinos and this store has most of the parts I’ve seen them use. That store has an entire section that’s dedicated to hardware hacking gear, including parts, kits, tons of Arduino components, full stamps, everything.
There is much more context and information in the original article. Zed recognized the parts, really did just want to know where the parts came from, and was interested to learn of the parts shop.