nuxx.net
Making, baking, and (un-)breaking things in Southeast Michigan.

PAiA FatMan Subharmonic Generator


My first hand-designed and photo resist etched PCB.
(Click for full 600dpi scan…)

Well, that went well. What you see above is my first hand-etched PCB, and is also a layout I did myself. That right there is the PCB I’m going to add to the PAiA FatMan which I am rebuilding, and provided I interpreted the schematic for the part correctly, that should add two extra octaves of harmony to this synth, giving it some nice, thundering bass.

I should mention that the traces are a shiny silver in person, although I’m not completely sure that I tinned them enough. Also, yes, one of the pads on the left side isn’t quite right. I’m not sure what is with it, as it appears to just be matte in person. It doesn’t matter too much, though, as the reason I made two is to both use up space on the board (it’s 2″ x 4″ and my design was nowhere near that large) and so that if one got screwed up, there would be a second.

So, I guess at this point I’m ready to try etching the double sided board for adding MIDI to my Casio SK-1. I would have done it tonight, but it is getting a bit late to start everything over from scratch…

Anyway, yeah. This makes me happy. Hopefully tomorrow I’ll be getting the order from Mouser which will contain the new resistors for my x0xb0x (photo gallery retired), parts for the FatMan rebuild, and the new pots for the Elenco XP-720K (photo gallery retired).

Mmm… Projects…

UPDATE: Damnit. I don’t know how I didn’t notice it until just now, but there is a 90º bend in one of the traces, when I tried to do everything in… Well… Not 90º joints. Guh. I feel like an idiot, because i know this is one thing that I was trying to avoid… And I somehow missed it in all the times I stared at the printout.

Ah well, It’s only a power line, so it shouldn’t hurt anything… I still feel dumb about it, though.

1 Response

  1. replika March 21, 2006

    Very nice! i like

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