It's a hybrid mosfet/jfet overdrive pedal that gets some great fuzz tones....
Only problem is, I can't think of a name! That is where I need your help.
Answers on a postcard addressed to freestompboxes.org. Thanks! Once I have a name I can put the schemo up and everyone can start building these wonderful little devices
Build Report Update wrote:L'Overdrive de la Révolution Deux: Photo Essay[/b]
Here is a short photo essay detailing the build of my very own LORD pedal. Tuck in, read and enjoy! Any questions? Fire away.
***DISCLAIMER***
The LORD is not a subtle sounding pedal when at full gain. Windows will rattle, ears will sear and any neighbors/front row audience will lose any fillings they posess. At lower gains the LORD can be used to get subtle breakup or just to boost your signal - the choice is yours the LORD is your tool.
1) The Schematic[/b]
First is the updated scheme. In my build I used a 100n cap on the source of the first fet and I used the "alt tonestack". I also added a "voice" switch which adds in a 4.7n cap across the 4.7n output cap I used for the mosfet stage (instead of the 10n stated), it essentially changes the bass response of the circuit from stock to what I call "thin".
You may want to tweak the caps about a bit to suit your gear. Alter the high frequency roll off points at the two Jfet stage e.t.c, experiment - play until it sounds how you like it!
2) The Breadboard[/b]
Here's the little sucker on the breadboard, testing was completed and confirmed that the little bugger made one hell of a racket - mission accomplished! (Note the cigarette burns on the carpet! Ooops!)
3) The Enclosure[/b]
I decided that "L'Overdrive de la Revolution Deux" needed a special enclosure (Read as; I was skint and didn't want to spend any cash buying a new hammond case!) I took the case from an old bust Ibanez phaser and modified it to my tastes.
4) The Enclosure Continued[/b]
A quick picture of the innards in place, you can see the squeeze I got into, having to slot that 3PDT in there was almost an error. The original footswitch will be used as a little "bonus feature"
5) The Circuit[/b]
I decided, for the extra mojo, to build the circuit point-to-point on perfboard. Here it is, layout completed and ready for the wires to go on! Note the two trim pots used for biasing the FET's to the correct voltage - very important!
6) Wiring and Test[/b]
After I wired all the controls in place I fired the circuit up for debugging, as usual there was no errors at allAll of the wiring was kept as short and neat as I could be arsed with!
7) Installation[/b]
Next I had to install the circuit into the enclosure. Nice and neat
Looking Good!
Still looking good.
Once more, just for luck!
So there it is, the finished article. One hell of an overdrive
Give it a try, you wont be dissapointed - "L'Overdrive de la Revolution Deux" is a crowd killer! Please, if you do build it, be sure to give feedback on how it sounds - what gear you are using it with etc....
Fred Briggs
Marshmellow wrote: Here's a PCB I did for the Lord.
I put a switch on the source cap of Q2 like Briggs did. If you don't want it put a jumper in there. Or turn the cap and put it directly in there.
The output is directly from lug 2 of the level pot.
PCB is exported at 500 dpi. When printed out it should measure 2,1" x 1,1".
Great thanks to Marshmellow and his work putting the layout together. One thing you should note is that in my build I used the "Alt Tonestack". It's pretty easy to modify the PCH layout to accomodate the alt tonestack... Both sound good..
Hey, hey, hey.... 