Dean Hazelwanter’s HT8950 pitch shifter (experiment)
I built Dean Hazelwanter’s Holtek HT8950 Pitch Shifter / Robot Voice / Vibrato from the build notes at General Guitar Gadgets. For fun, I used an optoisolator (VTL5C3) to control the 250K freq pot...
View ArticleVoodoo Vibe LED Driver
A very good friend from DIYstompboxes.com sent me this information. It looks like a pretty flexible LED driver… ExpressPCB file Text info & documentation *.zip file of everything above
View ArticleAlembic F-2B preamp
Here’s some build info I’ve put together on the Alembic F-2B. I’m planning to build myself one of these sometime real soon. The original… My redrawn schematic is primarily based on R.G. Keen’s, except...
View ArticleJC Maillet’s Nyquist Aliaser Project
You can find details about this project at Viva Analog. I went a little further by adding an envelope follower (based roughly on the envelope follower in the Lovetone Meatball) and a CV input that...
View ArticleThe Brass Blender
Here is a totally different version of the ParaLooper. It’s a blend pedal that is based on the Maestro Bass Brassmaster, which is why the title of this post is The Brass Blender. The circuitry inside...
View ArticleSKIPPY tremolo
The SKIPPY tremolo is based on the vintage Vox Repeat Percussion. The original VRP is well known for it’s very hard, percussive tremolo sound, or chop. Certain combinations of speed settings and...
View ArticlePenfold Fuzz Unit
I’ve been tinkering around with this circuit on my breadboard. It’s the Fuzz Unit from Music Projects by R.A. Penfold, 1994. Two parallel signal paths, a clipping style fuzz and an adjustable gain...
View ArticleAcoustic 360 Bass Fuzz
I love the sound of fuzz bass. But as a bass player, it sometimes seems like I’ve been on an endless quest for a great sounding bass fuzz circuit. I’ve tried quite a few different ones, both commercial...
View ArticleTube Steak Fuzz
I’ve always liked the Craig Anderton Tube Sound Fuzz / Way Huge Red Llama. It sounds equally good on bass, without a clean blend, as it does on guitar. But what to do with those four extra, unused...
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