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    Recommend me a pedal

    Tremolo? either moonshot for standard sounds or pendulum for more intrigue
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    On the Arachnid PCB, do the 914's have to be 914's?

    Ah. Yeah it’s confusing, idk. Since it’s in the Max Ratings section, I take that to be the max you can feed pin 1-2 without damaging the chip. If AVDD is 3.3V, make sure the signal in doesn’t go past 3.8v. A friend had an EQD Afterneath that was acting up, sometimes worked fine, other times no...
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    On the Arachnid PCB, do the 914's have to be 914's?

    (3.3V - 1.8v ) / 100k = 0.015mA per LED, right? Where do you see 0.5v as the threshold for the digital inputs on pins 16-18?
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    On the Arachnid PCB, do the 914's have to be 914's?

    On the other hand, the 100ks would act as the LED resistors, making the current draw very low. The fv-1 pins themselves should have very high impedance. The LEDs would probably be quite dim. There is a relationship (datasheet graph) between forward current and forward voltage, so maybe with...
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    On the Arachnid PCB, do the 914's have to be 914's?

    Hmm seems like it may not work, not sure. Should be able to try it… Red LEDs are typically around 1.8v forward voltage, compared to around 0.5-0.7 for the 914s. If you drop 3.3V by 1.8v, you get less than half of 3.3, and I’d expect the fv-1 inputs to go high or low compared to the halfway...
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    True Bypass work?

    Pedalpcb is the same except link 1-8 to ground the pcb input in bypass. Ori managed a scheme where both the pcb in and out are grounded, interesting. I’ve never encountered and issue with the pedalpcb way
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    Emu Amp Sim - C101 - 220u - minimum voltage?

    These are power supply filtering. Lots of pedals use 100u from 9v to gnd and 47u from Vref to gnd, so that would probably be fine here
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    9V Adapter Rehouse with Ground Switch

    Recently I've been using more headphone setup, either using the Strymon Iridium or the Spark Neo (which I love for the convenience). One issue is that if I'm testing pedals with a 9V wall wart adapter, not my regular pedalboard and not connected to the Amp, I have no connection to Ground. This...
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    Dung Beetle

    Agreed, great sounding fuzz / distortion, lots of character.
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    SOLVED Arachnid V2 - No Reverb / No Delay, everything else works

    Ok if reach out to Robert in a DM or email, seems like there’s pretty good evidence that your build is functional (since all Module8 patches work well), and that you have a bad chip (only the Unison patch was loaded).
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    SOLVED Arachnid V2 - No Reverb / No Delay, everything else works

    Do all the patches on the module8 chip work as expected? (I don’t see any day or reverb on that one so from the description it seems like all the patch numbers 1-8 work. I can’t think of any reasons for the reverb and delays only wouldn’t work, unless you got a bad chip? That’d be...
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    Leprechaun Wonky

    The lack of schematic in the build doc is unfortunate for troubleshooting. If you search in the forum though, it has been posted. What you’re describing sounds to be like it could be jumping out of the program patch that it’s supposed to be in. The fv-1 can have up to 8 external programs and 8...
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    Tommy III - slightly less scooped?

    I would try raising C11, maybe as high as 22nF, 33nF, or 47nF, for an additional treble cut. You could also bump up C3 a bit to increase the low mids. The Timmy doesn’t have any circuit that scoops out mids. Though I agree it sounds like it has less mids than many drive pedals. When the signal...
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    Tommy III volume mod

    I’d probably just use the 20k log pot and leave R5 empty. Using the 18k with a 25k linear pot would result in a reverse log taper, very hard to find the sweet spot for a volume pot. Graphing the math, blue is an approximation of the log pot, pink is the Timmy (log 25k with 18k, turns out to...
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    Back-lit faceplate tutorial.

    Woah that is super cool. I have tried this concept with a printed faceplate from AmplifyFun. Light bleeds through the printed black ink. Great to have another idea. Is it bright enough to function as the ON indicator? would the light shine through a white silk print layer? Or do you only do...
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    Double Pendulum Harmonic Trem

    Is the D3 led pulsing? I can’t tell from the build doc but I think it’s probably the blue one in your build. That info would help narrow it down some.
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    Your favorite JIS screwdriver set?

    Next question, should I be using JIS screwdrivers on pedals? I’ve always just used Phillips on the enclosures, hadn’t thought to try JIS to see if it fits better.
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    Your favorite JIS screwdriver set?

    We have some at work. Branded Vessel - Armor Grip. They work great with JIS screws. Huge difference compared to when we were trying to use Phillips drivers with small JIS screws. Compared to Erik’s link… it look like the same set. Same grip shape, same price, just printed with English words.
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    Mach1 gain MOD

    Hey I remember seeing your posts on the tagboard site way back in the day. Inspiring stuff. Check out the Tommy switch for more gain. To do similar on the Mach 1, reduce R11. The catch is, for the same frequency response; you need to scale the other components (scale R12 the same percent as...
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    Mach 1 Overdrive More Gain Mods

    A bit about transparent OD When you clip the signal, the EQ doesn’t sound flat. Clipping the wave adds harmonics which affect how you hear the EQ. Clipping adds some harsh high frequencies. Clipping low frequencies muddies up low mids. The vast majority of dirt pedals follow this path, to...
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