Wednesday, 19 October 2016

Earthquaker Devices Tone Reaper

From the source:

The Tone Reaper is a vintage style fuzz device based on the “3 knob” bender. It’s a silicon/germanium hybrid capable of producing an array of tones from every bender era with careful tweaking of the tone and fuzz controls. From thin and spitty to a growling crunch, all with a midrange punch to make it scratch and kick through any mix. The Tone Reaper will also please anyone looking for the higher gain Randy Rhodes style grind at it’s higher fuzz settings. All analog, true bypass and made one at a time by real humans in stuffy Akron,

Basically it's a modified Tonebender MKIII, with the biggest change being the Germanium darlington pair normally in Q1 & Q2 being replaced with a high gain Sillicon transistor.

Thanks goes to Galapagos, who traced his Tone Reaper, schematic and trace here. You'll notice there's a diode he marked mystery, which from what I can tell looks like a 1N4848/1N914, so that may take some experimenting. Also, without knowing the hfe and leakage of the AC176, I can't say for sure what would be a good substitute, but you may want to try the typical NPN Germaniums  typically use like MP38A, but these typically have little to know leakage while the original tonebender Q3 likes a lot of leakage.

Also, after some digging at other pictures and confirming with another worshiper of all things vintage fuzz (Travis), I believe it would be wise to socket the 100pF and 470pF caps as they may be larger then it seems from the markings on the effect. Specifically the 470pF in the tonestack I think should be 4.7nF and the 100pF should be 10nF like a MKII.  The cap to ground, 100pF in the layout, would help reduce noise, but in the MKII was 10nF and on the Tone Reaper board itself is poly, which I've never seen a 100pF poly cap. While the 470pF cap on the board is part of the tonestack, and if it is that small would make it sound insanely thin, and on the Tone Reaper board itself is poly, which I've never seen a 470pF poly cap.

Side comment. For those that want to have some more fun, you can build the Tone Reaper and put it in front of a Hoof, each on their own switch and make 2/3 of the Hoof Reaper, as we don't have a schematic for the switchable octave in between.

Monday, 10 October 2016

Menatone None More Black

Here is a very nice sounding distortion by Menatone.
I've drawn 2 layouts:
- with biasing resistors
- with biasing trimmers
I've also added a charge pump for the 18V required.
You can find the schematic on FSB's original thread here.

Original info:
The Menatone None More Black is a homage to all of their favorite high gain amplifiers. Amps with very German sounding names and amps named after Big Rig fuel. While not based on any specific amp, it is an amalgam of the best aspects of many amps rolled up into one. The gain of the None More Black ranges from hot rodded 800, to crazy, in your face, all out insanity. The SUCK knob can take the mid range from all the way gone, to crazy gobs of fat, vocal, goodness, while the PRES gives total control of the high end. This deceptively simple arrangement gives a surprisingly complete control of the tonal palette. 

Feisty Little One Thermal Detonator

This is a simple silicon Fuzz Face clone with added features.
You can find all the info on their site here.
The original thread with schematic is available on the FSB forum here.

Madbean Stank

Here is Brian's version of Aron Nelson Smash Drive with added TMB tone stack and recovery JFet buffer.
There are no videos available but you can find info and schematic on Madbean's website here.

Tuesday, 4 October 2016

Handmades Hell's Gain / HG-1

This was a request.
It's a diy Marshall emulator designed on Handmades Brasil forum.
You can find the original schematic here.