Earthquaker Devices The Depths

Direct from the source:

Ahoy! Welcome to your new Depths Optical Vibe Machine! The Depths is our take on the classic optical vibe circuit. Now you can swab the decks with the same lush, pulsating, three-dimensional swirling sound you know and love, with some modern accouterments for all you land-lubbers out there.

The Depths is optimized for use with all kinds of instruments, pickups, and to play well with dirt, so nobody’s left waiting on shore. If it’s got a ¼” output, plug it in and get deep!

 In addition to the classic vibe controls, the Depths features unique controls for “Voice” and “Throb.” The “Voice” control adjusts the midrange focus of the Depths, which is perfect for tailoring the effect to your particular instrument. Clockwise, you’ll hear a fuller sound with a low-end focus. Counter-clockwise, you’ll hear a thinner, spikier sound with a forward upper-midrange bite.  The “Throb” knob adds a hefty subharmonic low-end pulse to the vibrato signal, which is especially useful on synthesizers and the bass guitar. It sounds great with a little bit of dirt on the neck pickup of a guitar, too! This works best with the “Voice” turned counter-clockwise for a warmer tone.

The Depths’ “Intensity” and “Rate” controls are dialed in to give you the classic optical vibe sound at more modest settings, but dive in deeper and you’ll find anything from a smooth ultra-slow warble to sharp, speedy bursts! Also, the “Level” control has tons of output above unity on tap to combat the perceived volume loss of most vibe pedals, so your tone is always above water. And, if 9v isn’t enough to keep you afloat, the Depths may be powered at 18v for a stiffer tone with more headroom and sparkle.

We've got 2 layouts for you.

Layout 1: We've got the the LFO off the main board to hopefully prevent the dreaded LFO tick. Should fit in a 125b like the original. Downside is that there is more offboard wiring you will need to do.

Layout 2: Slightly larger board, with the LFO on the main board. You shouldn't get any ticking, and you'll save on having to deal with the extra offboard wiring.

Lovetone DoppelGanger (Gigahearts FX Doubel Ganger)

It's been a while since I've uploaded a monster layout. Therefore...
Here is LaceSensor's version of Lovetone DoppelGanger analog phaser.
You can find all info, build doc, bom and manual on Madbean Forum here (free login required)
(http://www.madbeanpedals.com/forum/index.php?topic=19190.0)
You could also buy PCBs when available.
29/11/2016 Layout updated & Verified: removed cut next to bottom right corner TL074 pin 11.
Here is a video of the original pedal (slightly different from this version)

DOD FX22 Vibro Thang

Here is a layout for the DOD FX22 Vibro Thang (Vibrato / Phasor)

04/05 Layout Updated: LM358 pin 4 and the 18K resistor from the bottom LM13600 pin 9 were connected to V+ instead of ground.

Death By Audio Robot - modded

This was my take on the DBA Robot but with individual switching for the IC internal functions (Vibrato, Robot and any of the octave options on the fly) rather than the rotary switch used in the original.  I thought it would be more versatile to be able to control them all individually rather than be stuck with the choices dictated by the original scheme, and all the sounds will be there with the correct settings of the toggles.  The Gain control has also been taken external after a recommendation from albru80.

I think it's probably not really worth including both and up and down momentary switches on reflection as that only chooses the direction that you step through the octave choices.  So maybe removing one of those makes more sense.  I'd suggest reading through the datasheet and deciding yourself what to include.

Info about the original:

The Death by Audio Robot is the latest in a line of sonic mayhem inducing pedals from our boys in NYC. The Robot brings Death by Audio into the low-fi, bit-crushing business. This insane pedal is a lo-fi pitch transposer that produces sweet, 8-bit ring mod effects to your guitar. The Robot features four operational modes; Normal, Octave Up, Octave Down, and Arpeggiator. The Octave Up and Octave Down modes are pretty self explanatory. The Control knob, when fully clockwise, yields either octave up or down depending on the mode. When turned down, it bends the pitch of the octave down so you can dial in the exact tone you want. In Normal mode the Robot acts as a lo-fi fuzz pedal and the Control knob bends the pitch down from clockwise. The amount of fuzz can be further toyed with using the internal gain control. Now the fun part. The Death by Audio Robot also features an arpeggiator. The pitch will arpeggiate in a sequence and the Control knob will adjust the speed of the arpeggiation. It also makes a slight change in the pitch, allowing the arpeggiator to go higher. With all this fun, who needs anything else? Arpeggiation, whacky robotic nonsense, and 8-bit fuzz fun are all jam packed together in the Death by Audio Robot.

Merlin Blencowe's One Chip Chorus

Another one of these nice little PT2399 projects to try out.  This was a from a schematic posted by Merlin Blencowe and it seems to give a nice range of vibrato and chorus sounds for such a simple design, using just the PT2399 IC and nothing else driving it. 

Clip made by Merlin (he posted that any noise was due to his recording setup and not the effect).

Yes the chips can be temperamental, but the results can be great for some of these effects.  Just don't forget to buy 10 x PT2399's and keep trying them until you find one that works :o)

Mid-Fi Electronics Clari(not)

This is a layout for the Mid-Fi Electronics delay/fuzz/vibrato/modulation/unstable tape simulator/weird noise thing.  Modified to include a switch to turn off the fuzz, leaving you with a clean weird noise thing :o)

Geiri's quick demo: