Modified DOD FX70 Stereo Flanger

DOD stereo flanger mods

I have had this old DOD Flanger kicking around in my parts box for about 10 years. I finally got around to testing the mods on it, and WOW! It’s a killer. From added LFO tones and noise to delay-like repeats The mods are pretty simple, you replace the 3 internal trim pots with comparable-value … Read more

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Low Power Vacuum Tube PreAmp

I have wanted to learn more about vacuum tubes for years but was always put off by the extremely deadly power requirements. Working with low power sources for so long, I have blown my fair share of capacitors, which is scary enough for me. Recently I discovered the world of sub-miniature vacuum tubes and the … Read more

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Germanium Fuzz using MP16b PNP transistors

The perfect layout for using the MP16b transistors that I have been importing from Russia. This layout is based on the Sabro Fuzz Face layout. I moved the bias from inside to the top so you can go from scuzzy velcro to full-on fuzz. I also dropped a line from the vero that was unused. … Read more

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1590bb style enclosure drilling template

There are many different ways to mark your enclosures for drilling, from measuring and marking with a pencil to freestyle marking or even taking a drill it and see approach. After many years of suffering from lopsided drill holes and jacks that came dangerously close to pots and switches, I started printing out drilling templates … Read more

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SUPER-FUZZ clone time

From underground alt-punk legends like the Butthole Surfers and The Cramps to full-on heavy metal icons like Black Sabbath, the SUPER-FUZZ pedal has a distinct sound that is heavy, fuzzy, and righteous all at the same time. The Univox Super-Fuzz pedals are the most common version of the circuit but Shin-ei licensed the design to … Read more

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PT2399 Noise Ensemble delay

The Noise Ensemble is an extremely noisy delay that can easily be pushed over the edge into self-oscillation. Based around the PT2399 IC; it has a built-in VCO, 2 op-amps, and 2 low pass filters crammed into a 16 pin dip case! It can get very loud! Check out the datasheet. I have built more … Read more

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MXR M-86 Classic Distortion mods

I did a couple of quick mods on my MXR M-86 Classic Distortion Pedal. The thing is sort of flat sounding so I did a quick google search and found a couple sites with some good info on the pedal in question. The most poular mod is to remove C4, and that made the pedal … Read more

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Noise567

Classic Noise Circuit Design with telephone tone IC

I have been building a couple of these ultra simple Noise567’s here and there, what a great little circuit! Super noisy, accepts an input, and has the craziest distorted ring modulator/fuzz depending on pot position. The only drawback so far has been that it has a constant VCO running that you play over. It’s fine … Read more

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Finished another couple of Power Starve Pedals

power starve pedal

 I like to call them power sag pedals but from what I have been hearing and now reading the correct term is Power Starve or Voltage Starve.. Dying Battery Simulator is still acceptable. Anywho.. 2 more have been built and shipped off to Hollywood where they will no doubt become the star of the pedalboard … Read more

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