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Did you look at the datasheet for the devices in question? What charge pump are you using and is it capable of delivering the required current? The bluetooth module says it will pull around 20mA from a 5V supply, not a huge deal. A typical charge pump should be able to run that. The amplifier...

Are these measurements taken with a pedal connected? SMPS often have very different output characteristics depending on the load on the output. I'm now curious enough to measure a couple of my supplies with and without a pedal connected.

Yup, what he^ said. There are other regulators out there that are "low-drop out" (LDO), but a linear regulator like this is only ever going to be a buck regulator, which means step-down. Regulators exist which are buck-boost, meaning they can take an input lower than the output or higher than...

They can be clipped off and aren't needed for anything but stability, but if your design is so densely packed that you absolutely have to do that to make it fit, are you even going to be able to get your fingers in there to turn the pots?

That's incredibly conservative (and based on a 12.6V supply, they will pull less on a 9V supply). Heaters can get warmed up with less margin from operating current, it just takes a little longer. Since these use an SMPS for the HV supply we're pulling everything from a 9V rail, so this doesn't...

Drill template is done, I'll throw together an artwork file then get everything up on the website and open ordering for Steddi Go. I'm going to have to limit stock as I'm a little low on XLR Daughter PCBs, so I'm waiting for my reorder of those to show up next week. Unagi transformers will...

Yeah it would probably be helpful to at least give estimates for mine, I can start getting those together. My general (conservative) rule of thumb would be to start with 300mA for the high-voltage supply and add 200mA per tube. So something like a Particle Accelerator would be 500mA, Black Eye...

I have the drill template almost finished for this, I'll grab the last of the coordinates tomorrow and get an artwork file put together as well. After that I guess you'll be wanting a build doc. A quick note, the D.I. PCB in this is a little tall for a 1590BB, so I'm going to recommend this in...

When I ship things I absolutely have that option, but my customers typically complain about the speed so they spend a little more rather than having it take 3 weeks to get to Canada, 6-8 weeks to get to Europe, and the record so far of 3 months to get to Australia.

Yup if you refuse to pay it the shipment gets returned. I haven't really looked into this for the US yet, but one of my Canadian customers recently bought a $400 pedal from me and UPS was trying to charge him something like $150 in brokerage fees. He ended up calling the customs office himself...

A fair point, yup. I would hope the brokerage fees would scale proportionally to the customs duties paid, so they would be negligible on small shipments, but that may not be the case.

I doubt you'll be seeing brokerage fees on orders like that. I think I've only had the "no customs duties but brokerage fees anyway" things once, and only with UPS, and it was on a ~$500 order.

Country of Origin is a slippery one with some loopholes. I was talking to my Vimex rep and he mentioned that they had a customer with requirements that no components come from mainland China, but they needed a rotary switch that was only produced in their China factory, so their solution was to...

True with Tayda, unfortunately not with JLCPCB. Tayda gets to a point (I think it was around $400?) when shipping goes to $1, JLCPCB just keeps going up with the package weight.

I usually go to UPS for my orders since the DHL prices went up. Speed is similar to DHL but usually 50-60% of the price. I'm way too impatient for the slow boat option. I continue to use JLC because I get SMD assembly on most of my boards, and assembly in the US is prohibitively expensive, and...

Because if I put the PCBs up then I have to post the build doc and drill template :P I'll see if I can find some time to get them up this week.

I have, but not as bad. Came out to about 30% of the declared value on a JLCPCB order. I have a couple more in process right now, we'll see what happens. UPS is the only carrier that has charged me brokerage fees. I had a reasonably large PCB order a few months ago that I carefully kept under...

Also, make sure there's nothing stuck to the board like this.

That's not even close to enough my dude, this thing pulls 700mA from a 12V supply when it's fully warmed up, which means to get it warmed up I would recommend at least 800mA, but ideally 1A if you can get it. EDIT: also don't power it up with the NE555 removed, it causes the MOSFET to overheat.