Today you can find out how do it yourself assemble a guitar gadget. Yes, not just an effects pedal, but a legendary pedal. Through this played himself Jimmy Hendricks, a brilliant musician and composer. In part, this lotion influenced its signature sound. Although we cannot dispute the fact that Jimmy was brilliant on his own, like a nugget and pioneer in many guitar matters.
In 2016, the 50th anniversary of the brilliant creation of the company Dunlop, Fuzz Face, will be held. Now you can assemble this pedal yourself.
Here is a diagram in which we see one of the typical circuits of a two-stage amplifier. It is capable of clipping (trimming in amplitude) the signal, initially amplifying and at the same time limiting it with transistors. Unlike distortion or overdrive circuits, where counter-parallel connected diodes are often used to trim the signal. With all this, the level of clipping is regulated by a variable resistor included in the feedback.
I would like to draw attention to the fact that the circuit has a negative mass. Although the original was positive, it will not affect the work. All this is due to standardization and ease of use. The circuit is exactly the same, only drawn differently.
Added: LED on indication, changed the bypass circuit (switching, in order to start the signal bypassing the effect). A 2.2 M resistor has been added. They say it can protect against clicks. Also added a filter capacitor (you can not set).
Transistors, since the original can not be obtained, you can put MP42b, GT402i.
Pre-selecting them by gain.
Here is the circuit board.
You can download the printed circuit board in the “lay” format here.
You can buy a case or make it yourself. For example, bend from a sheet of metal, or solder from a foil textolite. One advantage is that now we have learned how to make printed circuit boards, and the details have become smaller compared to the old models.The nice thing is that you don’t need to have a huge “frying pan” to place a pretty simple outline in it.
Here is an example of how you can design your pedal. I would like to emphasize the accuracy of the author of this work. This can be a model for your aspirations. After all, no one wants a messy, ugly lotion. Which at the same time is also all in rosin)). Although you can say the opposite, for example, that beauty is not sound does not affect. You will be right.
Thank you all for your attention. Collect beautiful, neat, and most importantly good-sounding pedals.
After all, only when you do a thing with your own hands can you be sure that you can get from it. And also satisfy your personal cockroaches.