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  1. dot matrix madness

    OPA4134 - what should I build?

    Phonopreamp. By far better harmonic distortions than the TL074.
  2. dot matrix madness

    Need a pedal idea for a specific enclosure

    "Fence Driver" would make a good name for a pedal. Or did farm pedals that already? :LOL:
  3. dot matrix madness

    Old Solder

    It works best if you're using a soldering station from the same decade. :LOL:
  4. dot matrix madness

    Skeptical buffer: C1 (Ceramic 3p)

    Well, 3p that can also be realized by taking two 1 inch long pieces of (insulated) wire and twisting them. I've spotted that on the PCB of the Simmon SDSV drum.
  5. dot matrix madness

    3K74 resistor?

    Here's my favorite site for finding the best combination for a less common resistor value Series/Parallel Approximator
  6. dot matrix madness

    Old Solder

    I'm using pretty much the same solder/rosin combination Sn60Pb40 without any problems, and that stuff is from the 70ies.
  7. dot matrix madness

    Funny little boxes binge- Stone Age, can of Worms and Plaid Preamp

    The graphic work is really great. From those three, Can of Worms and Plaid Preamp are still on my to do list.
  8. dot matrix madness

    Ordering from USA to EU using Stackry

    Did anyone of you guys use Stackry to ship a guitar pedal to an EU country (i.e. Germany)? I would like to hear your experiences regarding costums handling (looks like you have to electronically submit a form to the German costums office, if the value is >150 EUR including shipment!) and payment...
  9. dot matrix madness

    Missing Build Docs / Schematics

    Are the schematics of the "Nein Fuzz" left out in the build documentation on purpose? :unsure:
  10. dot matrix madness

    Better Way To Cut Stripboard?

    Darth Vader likes that.
  11. dot matrix madness

    Better Way To Cut Stripboard?

    Same here, I use a file before sanding.
  12. dot matrix madness

    Husqvarna AM415X - repair

    Yes, it does.
  13. dot matrix madness

    Mellow fuzz

    Still hoping that somebody has a "closer look" at the Landau Density Matrix.
  14. dot matrix madness

    Random pix

    Another glitch in the matrix:
  15. dot matrix madness

    Do you prefer lead or lead-free solder?

    Lead free solder made repairs much more difficult, but SMD parts are worse.
  16. dot matrix madness

    Can I tent/combine any of these values to make 750R?

    Need uncommon resistor values? This site suggests suitable combinations: series/parallel approximator
  17. dot matrix madness

    Updating build thread (mostly vero/p2p)

    IC2 functions as buffer, the distortion is build around IC1. The LM358 has a much slower slew rate than the TL072, which basically cuts off all high frequencies. Try a TL052, NE5532 or JRC4558 instead.
  18. dot matrix madness

    Aged Carbon Film Resistors

    Reminds to those resistors that I desoldered from scrap pcbs when I was a teenager. I guess "aged" reads "stored for decades in a room without air conditioning".
  19. dot matrix madness

    What's on the workbench?

    Speaking of fuzz, does anyone have "insight" into the Farm Pedals Landau Density Matrix? According to their own description based on a Black Russian Muff. Again one of the pedals that simply gets unaffordable considering shipping, import tax, and VAT :(
  20. dot matrix madness

    NOTAKLICHÉ PCB - Arriving Soon!

    Not neccessarily an odd idea. It still affects the sound. I've done that to a Rat clone using toggle switches to add various kinds of diodes (1N4148, red LED) in parallel.
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