Rockbox - Boiling Point

This pedal had a load of hype around it when it was released a while back (A few years if I'm correct!) due to the fact that they got a decent review from proguitarshop on youtube - http://www.youtube.com/watch?v=Hus8O7i_rZg, the psychedelic paint job the pedal received...

With a hefty price tag of $350 it didn't take long for the forumites over at freestompboxes.org to become interested and take one to pieces and guess what they found? That's right a tubescreamer 808 clone with a few mods.... hmmmmph.

Well here's the schematic (Thanks mostrummer), a vero layout (Thanks Harald Sabro www.sabrotone.com) and a link to the thread over at freestompboxes.org;

http://www.freestompboxes.org/viewtopic.php?f=7&t=7539

Playstation Flanger Design?

Here is one that I discovered hiding down at the bottom of my storage drawers! It's back from my circuit bending/noise production days. It's basically an old circuit bent DOD FX75B Flanger that has been modified to use an old Playstation controller to allow you to modify the crazy sounds that the unit can produce. I haven't played with this thing for years but I'll fire it up and try get some sound samples from it! They're crazy and not exactly the standard "Flange" tone but they are fun for playing with...

Super Klown - Klon Centaur with Ultratone Mods

So here's the latest of my Klon Klones - it's a 1:1 circuit replica built on one of Madbean's excellent PCBs (Real top quality PCBs, I'd recommend them to anyone - www.madbeanpedals.com). However there are a few subtle changes here (And here are a few more mods to perform to your klon!):

- Firstly the dual gain pot (which controls both the overall gain in the overdrive section and the ratio of clean signal to overdriven signal at the input to the boost/mix stage) has been split into two separate pots. This allows you to not only mimic the original Klon tones but also mix up your own varieties of overdrive/clean tone and come up with something totally unique for a Klon pedal. This mod is useful when used carefully and with the gain below 75% I'd say, any higher gain and the Klon loses what it's best at anyway and becomes just another overdrive.

- Second we've got the diode clipping switch, this switches between stock klon (Ge diodes with forward voltage .35 ~ .4v), silicon diodes (FV ~ .7v) and LEDs (FV ~ 1-1.2v). As you can see this allows you to greatly adjust the clipping threshold of the circuit. With the LEDs in place you get a much rockier, aggressive tone - it becomes quite a distortion pedal!

- Thirdly, I've socketed all of the opamps. This allows you to pick and choose your favourite clipping chips to stick in the klon, any dual opamp will do really. I liked the LM1458 and the LF353 (If I remember correctly!) in the overdrive portion of the circuit and a hi-fi burr brown op amp in the boost section (OPA 2132). However, it is also noted that a TLC2262 cmos rail to rail op amp also sounds decent when used in place of the first op amp. If you can't get hold of the burr brown opamp use a TL082 for the boost and treble control opamp.

- Soulsonic also posted up his extra gain mod: "Change R10 to 680 ohm, R11 to 4k99, and C7 to 180nF. This is my boosted gain mod. You get more gain, but the frequency response remains essentially the same at max gain. When used in tandem with the red LEDs, it can get some pretty rippin' distortion that's way more interesting than the stock boring dull overdrive."

- Dual Channel Klon??! - Earthtonesaudio suggested this simple but interesting mod. When used in conjunction with the split gain/blend pot mod it's especially useful. Basically you split up the bypass switching and and wire it to two separate footswitches, then you can use one to activate the bypass and one to switch in the clipping section - you now have three settings - clean (pedal not engaged), clean boost (pedal engaged but with clipping section switch grounded) and overdrive (pedal engaged and clipping section switched in). It works well too

- Finally. I'm not sure whether or not to do this mod, I'm tempted to add an extra switch to place in some "Tubescreamer" style soft clipping diodes over the op-amp. I'll have a play with it and decide if it's worth it (Probably will add an extra dimension to the sound, so it'll probably get done..... hmmmm.)

And here's some more images of one I just made:

Late posting but hilarious all the same; Freakish Blues rip-off merchants!

Aparently the "boutique" pedal builder "Freakish Blues" buy's $30 JoYo pedals and repaints (and goops up their innards!) them before reselling on for $170 on the Gear Page. Freestompboxes came up with the scoop back in June with the dismemberment of a Freakish Blues "Alpha Drive" pedal. Read that story here; http://freestompboxes.org/viewtopic.php?f=7&t=13383

Find the full story on the I <3 Fuzz forum; http://ilovefuzz.com/viewtopic.php?f=149&t=17985 along with some hilarious jokes and banter at Freakish Blues expense. Reselling repainted cheapo boxes? Whatever will the boutique boys come up with next?

The original JoYo "Ultimate Drive"

A lick of paint and inside goop and it's the Freakish Blues Alpha Drive. Just like magic!

Suhr - Riot

Super High Gain Mayhem. That's what the Suhr Riot is great at. There is a project available for the pedal now online at freestompboxes.org. Go and check it out, tune down and mosh off ;-)

Customary demo video;

Here are some cool photo's taken by CultureJam:

I'm just going to send you to where you need to go to get this built - the brilliant www.madbeanpedals.com (His site, pcbs and projects are top quality and I would recommend them to anyone looking to build DIY fx, make sure you check out his whole website) - http://www.madbeanpedals.com/projects/Uproar/docs/Uproar.pdf

Here's the freestompboxes topic; http://freestompboxes.org/viewtopic.php?f=7&t=10133

Thanks to all those involved. Originally this was a project undertaken by the Freestompboxes "Tracer's Fund" which is a communal pot that goes into buying and developing projects of the latest and greatest boutique fad boxes. Take a trip over to the forum if you're interested in getting involved :-)