MI Audio Blue Boy Deluxe Overdrive

 Schematic is avaiable HERE.

 

...and by request another layout with with mods by asbestosaurus at FSB.

 

R1 and R2 is the suggested values but they can be tinckered with for more or less overall output.

 

 

Rusty Box

 Based on the preamp of Traynor TS50B, Rusty Box is a big sounding circuit, perfect for bass and baritone guitars. The layout runs on 18v and has an onboard voltage inverter and voltage regulators for 15v/-15v operation. But it might work well on 9v as well but it will probably have more gain (...and less headroom) and some bias tweaking might be necessary.

 

 

 

God City Gradient w. gain ctrl

 Here is a quite simple Booster/Eq/light OD circuit designed by Kurt Ballou. 

More info and schematic HERE.

Deadend Fx Grimmafuzz / Schumann PLL fuzz section

 Schematic and more info is avaiable HERE.

 

 

Schumann Lion

 Modified for normal DC power supply with onboard voltage inverter and voltage regulators.

The layout is based on THIS schematic.

Wampler Black '65

 Schematic is avaiable HERE.

The overkill 470uF power filter cap has been reduced to 100uF and the 10ohm series resistor for the power supply has been replaced with a series polarity protection diode.

Hornby & Skewes Selectatone T.B.2

 A tweaked Rangemaster with switchable output filters. Schematic and more info HERE.

 

 

Hagerman Amplification Metal

 Schematic is avaiable HERE.

Fuzzlord Effects Drone Master

 Here is another trace by evilarsen; Fuzzlord Drone Master.

It is essentially a tweaked Rat with a diode selector switch, a switchable twin T notch filter for a mid scoop a la Superfuzz, and an op amp output buffer.

There is two versions for this (2019 and 2020) and since they differ quite a bit when it comes to some of the component values. The internal trimpot that sets the depth of the mid scoop was only present in some earlier versions but I decided to include it here since it seems to be an useful feature.

Bear in mind that there is quite a volume drop when the switches is in silicon and Scoop mode.

2019 version

 

 

2020 version

 

 

 

 

 

Frost Giant Electronics Soma

 Traced and verified by evilarsen. Thanks buddy!

Not that the part numbers for Q1 and Q2 isn't fully confirmed but it is most likely BC547/8/9 types with B suffix for Q1 and C suffix for Q2.

Product description:

Soma is a tuned version of our Massif Fuzz with the tonestack of the Doom/Sludge Metal giant The Tall Font Russian.

The Massif’s circuit was adjusted with more gain and cut but still retains the open mid response to keep you above the mix. An added bonus is we added a trimpot on the inside to adjust the bias if you decide you want a sputtery hellacious fuzz, stock it’s set for maximum sustain and gain.

 

Controls:

Volume – Adjusts the level output

Tone – The feel of your standard BMP tone control

Body – Shifts the low/mid low range in conjunction with the Tone knob

Fuzz – Adjusts the Fuzz level

*internal trimpot – Bias adjustment

 

Heavy and Saturated :: Thick and Fuzzy