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  1. spi

    Thumb Sucker

    This is only the second compressor pedal I've ever used. The other is an Orange Squeezer I built over a decade ago. That OS is easy--one knob, you turn it up if you want more compression. The Engineer's Thumb, with so many parameters to control, feels more refined. However, I've realized...
  2. spi

    Chop Shop

    Nice low-part-count overdrive. It's pretty transparent, and doesn't have much gain on tap. But it sounds good for adding some grit or boost, and I can see why this is a popular pedal--I was really enjoying the sounds I got when testing it, stacked with a prince of tone. I biased transistors...
  3. spi

    Pauper

    I repurposed an old Disarray pedal. The Disarray is from an early batch of pedals I built after discovering PedalPCB. At first, I liked it, but after building a bunch more drives, came to realize I'd never choose it over others that cover the same ground (and it was very dark sounding)...
  4. spi

    Changing Pro-10 blue side volume 5K to 100K

    The blue side of my Pro-10 is really loud, especially in contrast to green side. Unity volume comes on really early (like 8'oclock) and just gets super loud from there. It uses a 5K volume pot, and I'm wondering if swapping it with a 100K pot would bring the range into what I find on most...
  5. spi

    Fuzzy Foxx

    I don't have a lot of experience with octave circuits. I built a Green Ringer once, but I didn't like it at all, and ended up pulling it so I could use the enclosure for something better. I saw some demo of the Foxx Tone Machine and it sounded really good, so decided to give this circuit a try...
  6. spi

    Frustrating off-board wiring for Eva

    I've been building a Dead End FX Eva circuit. I put the holes for power and jacks off to one side to allow room for the Ge transistors. However, I neglected to notice that there are box caps there, so my hole locations won't work. Now I'm looking around for alternate locations, and I don't...
  7. spi

    Octrarock components

    Hi, sometimes octave pedals work better when some components are matched--for example, I hear the Fuzzy Foxx you should try to get diodes with the same Vf. Does Octrarock have any components that should be matched?
  8. spi

    A tip for your tip?

    I was reading the last Premier Guitar issue (the pedal issue), and there's an article that walks through how to build a BYOC delay pedal. One thing that caught my eye was this tip: Do you really shutoff your iron between steps? I only shut if off if it's not going to be used for like 30...
  9. spi

    MBP Cosmopolitan

    I've built a handful of fuzzes, and while they've all had their charms, I'm not a regular fuzz user. When I built the Fuzz Aldrin, I found it way more versatile, mostly because while it does the fuzz thing, dialing back the fuzz yields some great overdrive/distortion sounds that rivaled any of...
  10. spi

    Modus Operandi vs CrackleJack

    Has anyone built both and done an A/B test? They both have similar mosfet boost stage. From what I can tell, the Modus has a slightly different gain structure (adding a cap to the gain path), and adds a post buffer+filter. What does that extra stuff actually do?
  11. spi

    Golden Falk

    I had high expectations for this pedal given I like MIABs and several people here sing its praises. So far it doesn't disappoint. I used j201s, except for Q3 where there's an out-of-spec 2n5457 (following ChuckDBone's advice to ensure it has higher ISS than Q4). Kudos to Robert for putting...
  12. spi

    Secret Preamp (effectslayout)

    I already own a Chase Tone Secret Pre-amp, so building this was redundant. I got the PCB because when I ordered a flanger from effectslayout.com, I wanted to get something more to justify the shipping cost, and couldn't decide on anything else. My plan was to build this and sell off the Chase...
  13. spi

    GuitarPCB Rangemaster

    I discovered how awesome the treble booster circuit can be after building a Naga Viper. I recently bought a few Ge transistors so decided to build a Rangemaster. Prior, I breadboarded it and auditioned some transistors, and ended up selecting a 2n1039 with 134 hfe for this build (they all...
  14. spi

    More is better?

    What's the point of having two low-pass filters with the same cutoff in a row? Is it just a steeper knee to curve? Is it even audible? (taken from Modus Operandi)
  15. spi

    EffectsLayouts Pocket Comb Flanger

    This is the first BBD-based pedal I've made, and the first flanger I've owned that wasn't a part of a digital multi-effects. I was interested in building a flanger but many of the PCBs for them seem to be odd: either they are stacked PCBs, or in large enclosures, or run off voltages other than...
  16. spi

    "None more black" Dirty Sanchez

    Black knobs, switch, and bezel on a black enclosure. A bit noisy but sounds great. This is probably the highest gain drive I'll ever need. I was waffling was between ordering this and the Purple Channel, but the latter was out of stock so it made the choice easier.
  17. spi

    Jimilee's Double Dutch

    What's better than a 250? Two 250s! duh. Such a classic sound, and still holds up. This is based on the Gray Channel. I gave away the first 250 I built and knew I would build again, so when I saw @jimilee offering up some PCBs he made I got one. I didn't follow his component list...
  18. spi

    Acid Rain Fuzz

    Fuzz #3 in my "Summer of Fuzz (but not really summer anymore because where has the time gone)". Sort of a Big Muffy sounding thing, but good control of tone with bass and treble. Sounds best with fuzz cranked up.
  19. spi

    Neurocyton and Dung Beetle

    Wrapped up two builds this weekend. The Neurocyton is an AiaB based on a Fender brown amp. I don’t like when pedal makers drop these coy and vague descriptions—isn’t there more than one brown amp? Ok, it’s the one from 63… I guess I still don’t know how to decipher that. Anyway what is...
  20. spi

    Fuzz Aldrin

    I haven't built too many fuzzes, so this is the first of a batch I bought last summer to explore fuzz tones deeper. This one gave me some transistor fits. The original calls for BC109C cans. Well those cost a buck apiece, while viable replacements are still pennies I figured I'd sub in the...
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