Meat Paws!

MEAT PAWS is my take on the D*A*M Meathead Deluxe fuzz, with the bias set as an external control (GRIME). Having this as a readily-tweakable control opens the circuit up to all kinds of wild possibilities. It’s a simple circuit that yields thick, aggressive fuzz. The FILTER control is an input cap blend and turning it clockwise will allow for more bass to enter the circuit. This has less drastic an effect on tone than most standard tone controls since it is at the input of the circuit, but more bass allows for more frequencies to be clipped, resulting in a tighter (less bass) or more blown-out (more bass) sound, depending on where you set the filter. Below are some notes to assist in the build process, as well as the list of required components:

• Minimum enclosure size is 125B. The design of the board is optimized for top-mount audio and DC jacks
• Potentiometers are 16mm and spacing is 1.5 inch width by 1.5 inch height (38.1mm x 38.1mm)
• All resistors are ¼ watt package
• C1, C2, and C6 are box film capacitors. C3 and C7 are electrolytic, and C4 and C5 are monolithic ceramic
  
• The footprints used on the board match the transistors on this spec sheet, but any NPN transistor will work (with varying results, mind you). MIND YOUR PINOUT when substituting transistors. The square pad on each transistor footprint is the emitter pad and the middle pad is base.
• Included with the board are a 2" ribbon connector and a 3PDT daughter board with a spot for an indicator LED. Simply connect the six-point jump pad from the circuit board to the 3PDT daughter board with the ribbon connector to connect the circuit to the foot switch. You can use any size/color indicator LED you want. The CLR on the board controls the brightness of the indicator; more resistance will make the light dimmer.
• In the event you would like to use a different footswitch system, or feel like wiring the footswitch off-board, the six jump pads at the bottom of the board are as follows from left to right: Input Jack - Board Input - LED Power - Ground - Board Out - Output Jack
• A NOTE FOR THOSE WHO MAY USE A RELAY BASED FOOTSWITCH SYSTEM: the jump pad that supplies power to the footswitch board will measure under 9v if you place a resistor in the CLR slot. In order to make 9 volts reach the footswitch board, which will be necessary in order for the voltage splitter to put out a correct 4.5v to the relay, simply bridge the CLR pads on the Meat Paws board.
  

 

C1	4n7
C2	1uF
C3	100uF
C4	470pF
C5	47pF
C6	100nF
C7	22uF

  

R1	1m
R2	100r
R3	18k
R4	820r
R5	120k
CLR	2k2-10k

  

Q1	BC337-16
Q2	BC107B
D1	1N5817

 

LEVEL	A500K
GAIN	C5K
FILTER	A100K
GRIME	B25K