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It is quite funny, I have recently made a universal relay switching module for confined spaces where you can't fit a big momentary switch, such as in your effects. It uses an MCU and a hall sensor to sense the foot actuator. I am testing it now on 3 of your pedals but it can be used on any pedal...

I use these. They work great. I have printed them with an SLA printer. It is strong enough to tighten all nuts related to pedals. The only thing I did was to hollow the handles in a slicer. https://www.thingiverse.com/thing:4918010

I needed to measure voltage cause my pedalboard PSU can set the outputs in a continuous range. When you have wires and don't know which one has which voltage it is good to have a small tool like this. The voltmeter is a panel one from Aliexpress (about 2$). The box has holes that can be easily...

I was a bit adventurous and printed the plate on the SLA printer yesterday to mimic the Broadcast design. This was originally a design I had in mind for a UV print but it probably won't happen. Gorva S90 is a bit smaller so it could also be shrunk. The black colour is a paint marker on the top...

Another Duocast build in Gorva S90 enclosure. I bought this as a kit because I didn't want to source all the components. That is the reason why some capacitors are a bit too big (my only complaint about the kit). It fits in the end but I would have bought proper sizes myself. I went for the...

You can put "bill of material" (BOM) in the assembly layer as a table or show the values in the assembly layer (part properties and there is a tab next to silk) and then filter it out in the print preview.

I always wanted to build the L5 preamp (mainly because of the B.B. King :D) Sadly I haven't heard any good demo of it. Were your other builds also the first version of this project or have you tried the newer one?

@Robert have you tried to put an LC filter on the input or output as the datasheets or Jack Orman suggest and do you think there is any (real) benefit? Have you measured the ripple of the converters you use? I guess there is no audible noise but I am still curious about it...

Never heard about this box size, looks interesting. :unsure:

Have you had any problems with oscillations? Do you follow any specific rules to make a layout?

Tube-town has some interesting low watt kits https://www.tube-town.net/ttstore/en/kits/tube-amp-kits/low-series-10681/

Nice build. That enclosure colour is a reason I would love to have a powder coating setup.

My PCB finally arrived today so thanks for the report about the C3 cap. I will add some different values when I am ordering parts.

I use Nichicon UPW series capacitors in these types of circuits. https://cz.mouser.com/ProductDetail/647-UPW2F100MPD It is probably the smallest low ESR cap with a high enough voltage rating from a reputable brand you can buy. Anything with a higher voltage rating will be larger or probably...

From my experience, a bit of a flux never harms anything. Get some RMA gel flux and apply it to joints. Apply the heat and it should reflow nicely. The temperature you use should be fine but it depends on the iron power/temp control and the tip a lot. If the tip is too small the joint will suck...

That is interesting, there is a trace with a 2N5458 but that might have changed. They are not that easy to get.

Looks like it is 3D printed...

What about 2SK208 and 2SK209? I have used some for buffers, but from what I remember, the spread of parameters was quite tight. Easily obtainable. Still in production.

Thanks for the excellent idea and tips. I want to try to 3D print a stencil. My idea is to use an SLA printer so the details/size tolerance can be way better than on an FDM one. By 3D printing, you can make several offset ones to make outlined text for example. That is the theory so far. I have...

Nice build and I really like the circuit, how clean/overdriven can it be by itself?