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  1. Grubb

    ACID RAIN Fuzz

    The only question that matters 😂
  2. Grubb

    Cobalt Drive - Ground Points?

    Yes. Input and output ground pads, which correspond with these additional pads to ground noted in the schematic.
  3. Grubb

    Stinger Clean Drive

    I swapped the tonestack caps over in my Stinger today and I'm happy with the result. The tone control is now more subtle than most, with CCW giving a slight bass boost and treble cut, and the opposite when rotated CW. It could possibly have a stronger effect, but I much prefer the overall tone...
  4. Grubb

    Help me understand this schematic (Mach 1, Southern Belle)

    If I draw it like this, it makes me think I can simply add the resistance... 🤔 I couldn't work out how to signal VREF on this phone app so I used GND instead.
  5. Grubb

    Help me understand this schematic (Mach 1, Southern Belle)

    Thank you. Am I right in reading it this way? Filter 1: C4 + R8 Filter 2: C3 + (R8+R9 in series) I'm still not sure how to calculate the input resistance. The way R8 and R9 split into two branches is confusing me. The corresponding resistors are parallel in the Rat schematic so I'm none the...
  6. Grubb

    Help me understand this schematic (Mach 1, Southern Belle)

    One of my favourite circuits is the Mach 1/Southern Belle, which I have enjoyed building and messing around with. I'm trying to understand how parts of the circuit work, with an eye to potential mods. Below is the first section common to both circuits, taken from the SB build docs: I think I...
  7. Grubb

    Stinger Clean Drive

    So I've found that the Stinger has only been useful in specific circumstances, often needing the Tone control maxed to sound good. In trying to investigate why and to find some potential improvement mods, I've been doing some tone-stack calculations. Here is the tone curve with the Six String...
  8. Grubb

    Raw guitar DI tracks, where to find?

    Does anyone know of a good source of raw guitar DI tracks, preferably free and fair use? I'm making a few of my own to use for quick audio demos of new pedal builds, but would like to source some that represent other styles of playing, or use guitar sounds that I can't really get from my...
  9. Grubb

    Cleaning PCB

    Any tips for cleaning the component side of boards? I can scrub the back clean no trouble but getting in and around the stuff that runs through from the back is not so easy. And then there's always some left after soldering in pots and switches, which I have no clue how to tackle, seeing as IPA...
  10. Grubb

    Six string stinger help (tone control)

    In its native state, yes. It doesn't have to necessarily be this way though, and that's the beauty of tweaking the design to be more versatile or useful. I wonder if Minibooster users have the same experience of the circuit?
  11. Grubb

    Powder Blue Overdrive

    That is a clean build and a cool layout. And yet another drive pedal I will have to think about 🤔 🤦‍♂️ 😅
  12. Grubb

    Six string stinger help (tone control)

    Edited because I'm an idiot 😅
  13. Grubb

    Simulcast (déjà-vu)

    Yep that looks really nice. Strong design. Cool knobs. If it sounds half as good as it looks, you're on a winner.
  14. Grubb

    Adobe Illustrator Replacement Suggestions?

    Has Affinity sorted out the compatibility issues with Illustrator? Some folks have been having trouble with Tayda UV printing because Illustrator (used at Tayda) sometimes collapses the layer structure of pdfs created in Affinity.
  15. Grubb

    Where are you guys buying your box capacitors?

    Anything 5% tolerance is good imo. I get mine from Tayda, generally a mix of WIMA, Accutronics and Faratronics brands, depending on available values.
  16. Grubb

    Switching between multiple resistors

    Thanks for that link @mdc. I have saved the graphic from there to my reference folder, I'm sure I will need that again.
  17. Grubb

    Switching between multiple resistors

    I like it stock, but there's always the possibility for more. The gain range is one ripe area for mods. The other is the tonestack. The SS Stinger has a BMP tonestack which is tuned for fattening up single coil guitars and emphasises some bass and low mids to do this, with a slight, narrow mid...
  18. Grubb

    Switching between multiple resistors

    Thanks @BuddytheReow. I could be getting this all wrong, but using a parallel resistance calculator, I got things pretty close like this: 102R in parallel with 10K is 100R (tbh 100R in parallel with 10K is probably close enough) 1K2 in parallel with 10K is 1.1K Off position is 10K Does that...
  19. Grubb

    Switching between multiple resistors

    I'm playing around with the Six String Stinger circuit at the moment, planning out a few potential mods. Having learned this week that this OD/boost pedal has absolutely nothing to do with a very clean high headroom boutique tube amplifier - which is obvious on reflection🤦‍♂️ - and is instead...
  20. Grubb

    SOLVED Mach 1 problem

    Also, great choice of pedal. This is my favourite project I've built so far.
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