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This page includes all the current beavis board projects. Check back often as more are added.

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beavis board projects

test tube board projects

 

Project	What	Download	Date Added
567 Modulator	A bizarre beavis creation: use a chip designed to decode touch tone frequencies on phones, and turn it into a noisy ring mod/tremolo	download	5/29/2008 * Rev1.1 9/8/2008
Atari Punk Console	Kaustic's take on the great Forrest Mimms Stepped Tone Generator. A dual timer 556 modulates one frequency with another. A fun build and a great noise generator.	download	5/29/2008 * Rev1.1 2/20/2008
Bazz Fuss	Hemmo's great fuzz using a single transistor and diode. Easily adaptable for use with a bass.	download	5/29/2008
Boutique Tube Screamer	Quick question: How many boutique makers does it take to make an tubescreamer-based overdrive? Answer: all of them apparently :) This project shows you how to strip the buffers and other useless goo off a tubescreamer and make it the same as any boutique overdrive. The basic project includes the stock parts, but then there are tons of mod suggestions to get some great non-honk overdrive tones.	download	5/29/2008 * rev1.1  6/13/2008
Brian May Treble Booster	Here’s a simple treble booster based on the Brian May model. A single medium-gain transistor with low-value caps on the input boost the treble part of the signal. The original used a BC182L transistor but the 2N5087 works just the same. This circuit is very close to the original Dallas Rangemaster.	download	5/29/2008
Cigarette Amp	The great little amp that is built in a pack of cigarettes. Based on the 386 power amp chip, just a handful of components gets you a simple practice amp.	download	5/29/2008 * rev1.1  6/13/2008
Diode Mods	Shows how to use different arrangements of diodes for clipping in overdrive, distortion, and fuzz circuits. Includes symmetric, asymmetric, MOSFET, germanium, and variable clipping layouts.	download	5/29/2008
DOD Overdrive 250	A classic overdrive from DOD based on an opamp and back-to-back diode clippers. Build it stock and then go to town trying out asymmetrical clipping, LED clipping and other fun mods.	download	5/29/2008 * rev 1.1 12/18/2008
Dual Oscillator	Use a quad Schmitt trigger chip to create a fun project with dual independent oscillators. Great for stoner-rock drone sounds.	download	5/29/2008 * rev1.1 8/6/2008
EA Tremolo	The classic DIY tremolo originally published as a project in an Australian electronics magazine. Sounds sweet.	download	5/29/2008
Filtered Power Supply	A simple circuit snippet that will effectively filter noisy power supplies and provide reverse-polarity protection.	download	5/29/2008
Fuzz Face	Like the BMP, a requirement for any self-respecting circuit collection. This is the NPN silicon version using NOS BC-109 transistors, plus some fun mods and variations to try.	download	5/29/2008 * rev 1.1 13 nov 2008
Gretsch Controfuzz	An oddball rare circuit that’s also quite fun. The Gretsch Controfuzz is an opamp-driven fuzz/distortion unit that allows you to mix the amount of clean signal with the fuzz signal.	download	5/29/2008 * rev1.1 8/21/2008
IC Buffer	A stompbox-friendly buffer circuit based on a single operational amplifier. This project shows you how to make a low-parts-count buffer that is great for experimenting with your signal chain. Try it right after your guitar and before your first pedal. Also try it at the end of your pedal/signal processing chain just before the amp. Even in the world of true-bypass, a buffer can do a good job at restoring high end and lowering noise, especially in a long signal chain. Based on a Jack Orman design.	download	5/29/2008
LPB-1	The classic single transistor boost from EHX. This design uses a single silicon transistor for a linear boost that goes from clean to mildly dirty.	download	5/29/2008
Mockman	runoffgroove.com has been churning out great great designs for years. And the Mockman is one of my favorites. This opamp distortion pedal is billed as getting close to the 80's Rockman type sound. Distortion is mainly achieved by overdriving the opamps as opposed to diode clipping, but the circuit includes a switchable set of red LED clippers for an even more distorted/compressed sound. The result is a great project. For more info, check out http://www.runoffgroove.com/mockman.html.	download	5/29/2008
Muff Fuzz	A simplified variant of the muff, and a great sounding fuzz to boot.	download	5/29/2008
MXR Distortion+	Originally released in the mid-1970's the MXR Distortion + has been a popular pedal ever since. The gain is a bit less than what most of us would consider as distortion, but the circuit is simple enough to provide ample room for modifications. Take a look at the DOD 250 Overdrive project--you’ll see that is almost identical to this one.	download	5/29/2008 * rev1.1 2/18/2009
Noisy Cricket	The beavis audio take on the ruby. Adds a tone control and a switchable grit mod. Provides about half a watt of power off a 9v battery, or take it up close to 1 watt with a 12-15 volt power supply. Will drive a 4x12 cab!	download	5/29/2008 * rev1.1 3/9/2009
Orange Squeezer	Dan Armstrong's classic compressor. Adds a great amount of squish to your tone, this circuit has a unique sound.	coming soon
PWM	Tim Escobedo's great little digital type distortion. Using a 40106 quad Schmitt trigger, you can get some very unique fuzz/distortion tones. A simple build and loads of fun.	download	5/29/2008
Red LLama	The Way Huge clone of Craig Anderton's original Tube Sound Overdrive. Use a CMOS chip to generate great overdrive sounds.	download	5/29/2008 * rev1.2 10/19/2009
Ruby	A great 386 amp from runoffgroove.com. Adds a buffer front-end and some nice tone-shaping to the standard 386 amp configuration.	download	5/29/2008 * rev1.1  7/21/2008
Transistor Buffer	As with the IC Buffer, this project is a simple-to-build buffer with pretty good performance. This one is based on a JFET transistor and offers a bit warmer tone. Based on a Jack Orman design.	download	5/29/2008
Trotsky Overdrive	The beavis audio take on the classic Electra Distortion circuit that used to be built into guitars back in the 60's. The Trotsky adds a gain control and a switchable hi-cut filter. Build it stock or experiment with different transistor types and diode clippers. Lots of mods...	download	5/29/2008
Test Tube Board Projects
Project	What	Download	Date Added
Matsumin ValveCaster	A great low-wattage 100% tube booster and overdrive using a single 12AU7 tube	download	10/30/2008
	... and more great test tube board projects coming soon