Issues with schematic

But if you want to associate that holey pad with a net, you’re better off using or making a footprint of it first then assigning it to a single pin symbol.

More to which, the connector or make your own footprint?

KiCad is changing so fast that even one year old tutorial is outdated.

KiCad philosophy is: one hand on keyboard (hotkeys), second at mouse.
I have never tried to learn from videos. I can’t imagine to be it possible for me to notice the hotkeys cooperation with mouse. I would have to stop it hundred (if not more) times and only videos that are made by tools showing keys pressed could be useful.
In 2017 I have just read all KiCad pdfs (they were titled as being about V4 but practically they were about V3). Then I went through all menus and made my cheat sheet. Reading Forum helps me to follow KiCad changes. I feel I can do what I need. I’m not using new features like database. If I will decide to do that I will read relevant documentation first.

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Ah! That makes sense!

BTW:
I ran out of 10k-E resistors. “E” is the most common letter in German.

Or is yours just an even better obfuscation of the EIA-96 SMD Resistor Code?

:sweat_smile:huh??? You lost me…

Ive encountered an issue with my footprint… In my schematic, I had no idea what to use for a jfet 2n5457 as I couldn’t find a placeholder for it… If I attach an original schematic are you able to diagnose which the drain/ source and gate are??



Screenshot 2025-03-22 at 6.02.53 PM

Those holes look way too small.

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Yeah just use a TO-92 footprint instead of making your own pads.

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I was doing some reading and just found out this was possible! saves me so much time, wow.

If that original schematic came from somewhere else, R4 is actually a variable resistor intended to control the gain, and the B indicates the taper (the rotation vs resistance curve). I think in this case B means log taper but in some countries it means linear taper.

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Ah, interesting… This is a schematic for a “boost” circuit for my guitar, or called a “stratoblaster” I wanted to re create it with some tweaks…

Should I amend my schematic to allow for a pot connection? Im not sure how I’d do that… My idea was to just have it boost, because I wasn’t competent enough to make it adjustable, but I think you just figured it out…

It could be a trimpot, not a panel potentiometer. If you can live with fixed gain, use a fixed resistor. The gain will be roughly R2/R4. Sorry, can’t discuss circuit design here, but look up common source FET amplifier.

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If you want a trimpot, place it on the PCB. If you want a pot mounted on the enclosure, not the PCB, place a socket connector on the PCB and a plug connector and the pot off the board.
This way, the schematic shows the plug, socket and pot, but the PCB only has the socket.