Jfet conversion of the Orange Graphic MKII ™ that delivers a thick and saturated drive. This project really stands out from the standard Jfet amp emulators due the nature of its schematic, you can find the baxandall eq at the beginning, in between the first and second gain stages, to have total control of your tone before the signal gets saturated. But what makes this project and the original Orange Graphic MKII so interesting is the FAC switch that acts as a high pass filter in between the third and fourth stages, allowing you to do dial your tone in unique ways.
It´s not about Alex and his droogs in Stanley Kubricks Masterpiece of a Movie based on a book by Anthony Burgess. Big sorry for that. But send me a mail if you want to talk about it. It´s one of my all-time favorites and I could chat about that for hours.
So… Why the name? When we are basically talking about an all-time classic British amplifier pressed into a rocking hot preamp/drive project where the tubes get replaced by Jfets to make it even DIY friendlier without sacrificing the response and behavior that you are looking for? Maybe it´s because of the fact that these super rare Amps were also made in the ’70s and maybe the color got to do something with it as well. Maybe the artists who played the original Orange Graphic MKII ™ back in the days like Led Zeppelin, Black Sabbath, Sleep, High on fire, etc…. Watched the movie as well. Who knows, I just like that name but should probably get back to the point. To get the dust from this schematic we added a rotary switch to select different filter caps what is altering the whole behavior of the effect and makes it even better suitable for anything from classic rock to doom metal.
- FAC switch (high pass filter)
For further analysis on this circuit, take a look at this thread on Free Stomp Boxes Forum.
For any technical questions regarding this build, don’t forget to check out our Facebook Group and our forum at Free Stomp Boxes.
Alexander Mantush (verified owner) –
First and foremost – great customer service. By “Great” I mean really outsanding. You’ll get answer the same day (I have to mention that you’d better contact via Facebook group). The pedal is gives THAT “Orange crunch”: fizzy, yet clear it has a lot of gain on tap. The coolest feature is the F.A.C. switch: 12 positions let you go from bass-heavy to very tight and focused low-end. For those who wnat to hear how does it sound on the medium-gain settings, here’s the link below:
Thanks a lot for your review! Great video!
I’ll share it in our social media groups if you are okay with that and I’ll give you a giftcard for it 😉
Alexander Mantush (verified owner) –
An update to my previous review, after almost a year of using the pedal (so far it is one of three main pedals I use all the time). The reason I ordered the PCB was to get the most realistic “Orange sound” for my recordings. Though there are several vst amp-sims, that sound not so bad, the vst was usually was “almost… but not exacty”. This pedal is a real deal solution: it produce EXACT Orange tones with fat but bouncy midrange, distinctive upper midrange bite, and solid low-end. On a lower settings it can produce springy breakup, it does well all shades of gritty mid-gain, classic Orange medium-high gain up to Sabbath-like high gain. The FAC helps to dial everything betwing super-fat and super-tight tones.
Here are my favorite settings of this pedal (recorded with Clockwork Orange connected directly to audio-interface, with Two-Notes Wall Of Sound cab-sim added in DAW): https://youtu.be/6pEv-yDR0AU
Max Roberts (verified owner) –
Very cool sounding preamp pedal. It can get some pretty doomy drive going all by itself (bass and FAC turned up) but rolling back on the guitar volume cleans it up very nicely. Great cleans with the gain back, and it can get bright and chimy as needed. Really flexible with the FAC control. I don’t know why I a 12 pole rotary switch is spec’d however, as only 6 positions work, it’s even shown on the schematic, poles 7 though 12 aren’t connected to anything. The real deal amp only has 6 settings on the FAC so that is correct. Maybe 1p6t rotaries are harder to find. Either way great pedal.
Gregory Kelly Sr –
Accurate representation Beautiful Crunch