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I used Kicad to enter the schematic and layout the PCB and sent it off to PCBWay. It's shared there... https://www.pcbway.com/project/shareproject/Keyed_Noise_Gate_for_Modular_Guitar_Pedal_Board_Using_4305Q16_U_Dynamics_Process_0be9e9ac.html

Its very similar to bias of a triode tube... The resistor between source and ground sets the bias current and is (nearly) independent of supply voltage. And, it can be bypassed with a cap to increase gain at higher frequencies depending on the value of the cap. The drain resistor will determine...

If there is no buzz or hum, then it's OK but really should have one solid connection to earth ground for safety since your guitar strings are connected to the negative of the power supplies. If either of those supplies goes bad and allows mains onto the output, would really rather have a fuse...

O Oh shoot. Yes. I thought I updated the gerber file in the shared project but forgot. I just updated it at PCBWay. But, unfortunately, you got the old one. Here's where those go on the new PCB. The easiest bodge is to first solder R22 and C14 in series, add some heat shrink to that so it's...

I have no idea. I was looking at Vgs-off for various jfets at mouser and bought about 10 different types. The goal was to land between 1k and 2k for source resistor, about 4k to 15k drain resistor and have about 4V drop on the drain resistor. J113 biased well so made it into my prototype.

I have an F1 on the bench right now and tracing the schematic. These do have a bias adjust on the input jfet but it's set to 2k, which is exactly what would be picked for just about any mmbf5458 today. There's another bias adjust pot but haven't gotten that far yet. I've made lots of series 2...

I was getting nervous. 4 days in customs clearance... First time this has ever happened.

Not just on, but selected. KiCad shows the selected layer in the foreground. Selected: But, yes, your zone transparency was hosed. Select the layer that is opaque (just like the silk screen is selected above) and use { to see through it. Filled zones are supposed to be transparent by default...

Dropped back to reasonable at PCBWay, too.

And verify the earth ground pin on the mains is connected to the negative of the output voltage.

I use 1N5408 soldered directly to the power jack in the amp. You can get 24V power supplies with or without an earth ground. If your power supply for the other pedals has an earth ground that is tied to the negative rail, then get a 24V supply that only uses a 2-prong plug, no earth ground. The...

I always add a 5A diode inside my amps to drop a volt and have used at least 5 different cheap 24V 2A or 3A supplies from amazon that have all been fine. That said, you must be careful with ground loops. On my real pedal board for gigs, I have a cioks DC7 and it's aux 24V output is perfect for...

OSH is, at least, not ridiculous. They directly import kicad files (nice). $5/sq in for 3 boards is just under the ridiculous level and is not money sent directly to trump's grubby hands. Malaysia might be an option. @vigilante398 what company in malaysia are you talking about?

Just PCBs. That's their cheapest "no touch PCB" service.

Are there any reasonable US PCB fabs that can link easily to KiCad? This is a quote from Sierra... Ridiculous.

I ordered boards last week from PCBWay which haven't arrived yet: Of course, found a few missing components and tried to order an updated version of the same board today and this is what the checkout looks like. Imagine the hit to small businesses across the country... murca.

Since some interest was shown in PCBs with only the drive channel, I've made a project at PCBWay... These are stand-alone, so include everything needed to make a drive-only pedal. The PCB project is shared on PCBWay here...

Even the topology changes with jumpers. I can sell you some PCBs I have on hand if you like for $2 each plus shipping. PM me if you like. And I can post the interactive BOMs for them as well.

I have PCBs with only drive channel but didn't share them at PCBway figuring no interest. There's significant differences between drive channels.

You mean a mute switch or a power switch? My preamp boards all have some form of mute with an LED to indicate if on or off. A power switch can be added in series with the incoming power from the jack and an LED, with resistor, on the other side of the switch.