Red Llama
The Red Llama is a very versatile and easy to build pedal. With just few components and two knobs, it delivers great overdrive and distortion.Steps
Categories
Status: Active
Designators and components Step 2 of 5
PCB DESIGNATORS
Resistors
R1 1M 1M OHM 1/4W 1% METAL FILM RESISTOR
R2 100k 100K OHM 1/4W 1% METAL FILM RESISTOR
R3 100k 100K OHM 1/4W 1% METAL FILM RESISTOR
R4 1M 1M OHM 1/4W 1% METAL FILM RESISTOR
R6 1k 1K OHM 1/4W 1% METAL FILM RESISTOR
Capacitors
C1 68n 68NF 100V 5% POLYESTER FILM BOX TYPE CAPACITOR
C2 50p 50PF 50V CERAMIC DISC CAPACITOR
C3 33n 33NF 100V 5% POLYESTER FILM BOX TYPE CAPACITOR
C4 100p 100PF 50V CERAMIC DISC CAPACITOR
C5 10u 10UF 50V ELECTROLYTIC CAPACITOR 5X11MM
C6 100u 100UF 35V ELECTROLYTIC CAPACITOR 6X11MM
IC
U1 CD4049 CD4049UBE IC HEX BUFFER/CONVERTERS
Diodes
D2 1N4001 1N4001 DIODE 1A 50V
Potentiometers
GAIN 1M-B 1M OHM LINEAR TAPER POTENTIOMETER
VOL 10k-A 10K OHM LOG TAPER POTENTIOMETER
PCB (RED LLAMA DIY PCB GUITAR EFFECT)
PCB SCHEMATIC
MODIFICATIONS
Increase the gain by reducing R2 to 10k, or increasing R3 to 10M.
GENERAL DESCRIPTION OF COMPONENTS
Resistors
Use a multimeter or the color bands to obtain the resistance value. Resistors do not have polarity, you can place them in any direction.
Electrolytic capacitors
Electrolytic capacitors have their value printed on them. The negative polarity pin is indicated by a white strip along the can. They also have a longer leg indicating the positive pin. The maximum voltage rating never can be exceeded, make sure you are using at least double voltage rating than your power supply. For example, if you are using a 9V power supply, use a electrolytic capacitor with at least 18V maximum voltage rating.
Polyester capacitors
Polyester capacitors have their value marked with three numbers. Read as picofarads (pF), the first two are the 1st and 2nd digits and the third is the multiplier code. These capacitors do not have polarity, you can place them in any direction.
Ceramic capacitors
Ceramic capacitors have their value marked with three numbers. Read as picofarads (pF), the first two are the 1st and 2nd digits and the third is the multiplier code. These capacitors do not have polarity, you can assemble them in any direction.
Integrated Circuits
Integrated Circuits (ICs) have their model printed on them. A notch half-circle or a dot indicates the correct position on the PCB.
Diodes
Diodes have their model printed on them. The polarity (cathode) is indicated by the ring near the side. This ring is also marked on the PCB.
Potentiometers
Potentiometers have their resistance value marked on them. They are marked with A, B or C for logarithmic, linear and reverse logarithmic, respectively.
