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As long as you keep them electrically isolated there's no reason you couldn't, it would just be a little difficult to mount them securely.

We got new stools in one of the labs at work and they seemed super nice, really comfortable and lots of features, so I looked up the model number so I could grab one for the workshop. Apparently they're $2500. My butt is not that important.

I originally got this one for myself, but since my wife works with me on pedals now it turns out I actually got it for her. I'll probably pick up another one soon as the harbor freight stool I've been sitting on for 5 years is wearing out.

After four years and three attempts at hiring outside help I finally got a working prototype. Still needs a little work before it's ready for the big time, but it's very very close.

And that would be important if we had people in power who actually cared what they were legally allowed to do.

Transformer selection is the worst part of flyback design in my opinion. I'm in the process of revising a design that I did so I can get more current out of it and I'm doing everything I can to avoid changing the transformer because it's an OTS part and I know it works 😆 I'm not a power supply...

Board looks great! Can I ask what machine you're milling with? There aren't a ton of us on here, but I think there are enough CNC users we should probably start a thread for it. 450VDC at 50mA is doable, but not trivial. You're almost definitely getting into flyback territory. The nixie supply...

Looks like a cool idea! As a general rule if something is in build reports I expect to see something that has already been built, projects in development usually hang out in the "Open Discussion" section. Looking forward to seeing how it comes out!

Effectrode is the only pedal company I'm aware of that uses a relay for polarity protection.

OP is asking (in Spanish) if there's someone willing to design a PCB and generate gerber files for them.

Lightning Boy transformers are handmade in New York by a dude with a lot of studio gear experience. I don't think he likes me very much since I got a new transformer supplier, but I used his MC15 transformers for my D.I. builds for a long time and they're great, I would put them right up there...

Not very many tubes in that one, I think. Build looks fabulous though, I love the gold on green look.

Yeah this is only my second formal cease and desist (not counting the "I really don't like that you're making these") I received, and so far the only cool one. The only problem is that the letter is 40 pages long so I have to decide which page is the coolest because I don't have 40 pages worth...

I don't take it personally, I'm actually flattered that they even know I exist. I'm planning to frame the letter and hang it up in the shop.

Found another great use for the UV printer: complying with cease and desist letters. I have a couple preamps based on existing amplifiers and apparently crossed into some gray area of "fair use", so I'm relabeling them per their request so I can sell off my existing stock.

Why does it need to be SSD? Are you expecting to need to read data off them at high speeds? HDD are reliable for backup, they're just bigger and slower. I have 4x HDD set up as a redundant 2x2 for my backups.

Do you or someone you know have a tube tester? I don't like telling people to buy new tubes if they don't specifically know which one is the problem.

Crap, I thought I had those in the BOM, looks like I don't. The holes are sized for M3 hardware, standoff should be 10mm long (not including threaded section).

I have a policy that I don't make DIY projects for active Sushi Box products, and the chances of discontinuing literally my best-selling product ever are pretty slim.

I literally sell more of those than everything else I make combined. Not to toot my own horn, but they're pretty good.