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Gotten a couple requests for this one. Here's Bajaman's second take at his AFD circuit with a better frequency response than the first AFD. More info here on FSB. Should fit nicely in a 1590B.

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Got a request for this one for Fuzz Friday. The Tone Bender Mk.II Professional is essentially a Fuzz Face with an extra gain stage up front. The Fuzz-Bender basically puts the extra gain stage of the Mk. II on a switch, allowing you to more or less switch between a Tone Bender and a Fuzz Face. Layout is based on this schematic.

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I traced this one a while back and created the Lawn Darts PCB over on the store from it. About time I made a perf and etch layout. If a Rangemaster and an Electra ever got together and had a baby, the Arrows would be the baby. Should be an easy fit in a 1590A with the pot board mounted.

Earthquaker Devices Arrows Preamp Booster - YouTube


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Stumbled across this schematic on FSB. It's a buffer/EQ/preamp for peizo pickups, specifically all Barcus-Berry electret microphone systems. I figured most would be building this into an instrument and not a pedal, so all the pots are off-board. If you're planning on running it only off a 9v battery, you cab get away without the power filter cap (47uF) or the polarity protection diode (1N4001).

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This one was requested ages ago and I got halfway through laying it out, and then promptly forgot about it. It's a power amp/speaker cabinet simulator, emulating a SLO power amp and a couple different speaker cabinets based on the value used for CX (see schematic for values). This layout follows the Rev4 schematic from the thread here on FSB.

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Happy Fuzz Friday everyone! Got a request for this one put forth on FSB. It's based on the ThroBak sTone Bender, which itself is just a straight clone of the Tone Bender Mk II Professional. The layout is setup for positive ground and PNP transistors. You can use a voltage inverter daughter board or flip any polarized components and use NPN transistors if you want to daisy chain this with other effects. Also, I added a 1k limiting resistor of the bias pot (far upper right side of the board) that may need to be adjusted to taste. Easy fit in a 1590B.

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Here's another one I was surprised I hadn't drawn up before. Like the Custom Badass '78 Distortion, it's also based on an old Boss pedal—the SD-1. (Or I guess you could say it's a modified version of the Zakk Wylde Overdrive, but that's based on the SD-1... Either way, it's definitely been modified with the added 100Hz control and the Bump switch. Here's the schematic for reference. Should fit nicely in a 1590B.

MXR M77 Custom Badass Modified O.D Demo - YouTube

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Someone requested the Openhaus which, to be honest upon pulling up the schematic, made my eyes glaze over. It's big. But I came across a stripped down version on Sabrotone and it felt much more doable. So here you go! It'll fit in a 125B with top mounted jacks and both footswitches. I'll leave the method of the voltage doubling up to you.

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Not a lot out there on this one, but stumbled across the schematic over on FSB. Apparently it's another Marshall-in-a-box type. Sounds pretty good. Should fit nicely in a 1590B. The 1uF and 2.2uF caps are tantalum in the original but eletrolytics could be used as well. Original 1S1588 clipping diodes could easily be replaced with 1N4148s if need be.

Noah'sark distortion M demo - YouTube

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Stumbled across this Big Muff variation designed by Anders over on the Tagboard forum. Seemed like a cool design for Fuzz Friday. Here's what he had to say about it:

Inspired by Skreddy Top Fuel and a DIY muff project One Knob Gilmour I have been tinkering with a big muff circuit using mosfet transistors for all four gain stages along with mosfets wired as diodes in the second clipping stage. I've been using 2N7000's just because I have tons of them but other mosfets like BS170 should work as well. For more variety I added AMZ big muff tonestack. 

Sounds tighter than a regular muff and has more distortion elements than fuzz. If any fancy building this shielded wires is a must since the gain is pretty high and it's on the edge of oscillation when pots is dimed. 

Coupling cap values is mostly from Violet Rams Head muffs to give a balanced tone but those could be tweaked to desired values as well as the small BC caps. 




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