GuitarPCB Angry Llama Manual

GuitarPCB.com
Angry Llama Build Instructions
Based on one of the most popular DIY Builds the original Red Llama™ y Way Huge™. Our version also includes an
added Gain Stage for those people want more availa le Gain (Distortion). We do this without sacrificing the original
circuits unique tone y adding a clean stage at the end of the circuit. Furthermore, we used Gain mapping to make it
when the Boost control is turned down full CCW you get the exact same great tone as the original Llama with the
a ility to add more Gain y turning the Boost control up CW from there. This will create more availa le distortion
than the original circuit while preserving the character of the original. We have also added a Hot Switch at SW1. Use
these options separately or together to adjust your final sound or set Boost to full CCW for stock tone.
Board Dimensions (W x H) 1.95 x 1.65 inches
PARTS LIST
Part Value Part Value Part Value
R1 1M C1 68n Q1 J113
R2 100k C2 100p LEVEL A10k
R3 330k* C3 33n GAIN B1M
R4 10M C4 100p BOOST A100k
R5 1M C5 10u
R6 33k C6 100n D1 CA Status LED
R7 1M C7 100u D2 1n5817
R8 1k C8 22u
R9 33k C9 220n SW1 SPDT ON-ON
R10 1k8 IC1 CD4049UBE TR1 20k

SCHEMATIC
STATUS LED
Note: If wiring the LED to our 3PDT oard no need to connect S4, S5 & S6 or populate D2 or R28 (CLR) on the main
oard since you are wiring your LED directly to our oard.
Be sure your In/Out Jack wiring is correct. A Stereo Jack (for attery use only) has a
RING lug which is used to connect to the attery ground. If you do not intend to use a
attery there is no need for a Stereo Jack. If using Stereo then only use the Tip and
Sleeve lugs. S4, S5 & S6 is only needed when the LED is wired to the Main Board.

IMPORTANT NOTES
*R3/SW1 (Hot Switch) R3 can be anythin between 100k and 1M, althou h a ran e of 270k to 330k is
su ested. This affects the level of ain in one position of SW1. The lower you o, the more difference there
will be between the 2 settin s of the switch. Socket and try different values.
TR1 adjusts the ias of the Boost portion of the circuit. To set the bias, measure the volta e between the drain
le of Q1 and any round. Set the trimmer so that this volta e is rou hly 5v to 6.0V.
BOOST Control: The Boost is Off at full CCW then you can turn it up for extra Gain/Distortion.
WIRING DIAGRAM

DRILLING GUIDANCE FOR POTS and LED
Drill Tips: Measure your components before selectin a drill bit. We recommend drillin the pot holes, mountin the pots in the
enclosure, and then solderin the pots to the board. This approach should resolve the issue of the pots not fittin throu h the holes
after solderin . We also recommend you make the holes for the pots a little lar er than the threads in case you decide to remove
the board and put it back in durin the build, to avoid problems. Use this uide at your own risk. Make sure pa e scalin is turned off
when you print this PDF, or the ima e above may be smaller than expected. Verify everythin before drillin .
Need a kit?
USA – Check out PedalPartsAndKits for all your needs.
Europe – Das Musikding carries oth oards and kits as a service to our Europeans friends.
Australia - PedalPartsAustralia.com carries GuitarPCB Boards and Kits direct.
This document, PCB, Artwork and Schematic Artwork © GuitarPCB.com. Schematic and PCB desi n by Bruce R. and
Barry. Build Document by Bruce R. Wilkie1 and Barry. All copyri hts, trademarks, and artworks remain the property
of their owners. Distribution of this document is prohibited without written consent from GuitarPCB.com.
GuitarPCB.com claims no ri hts or affiliation to those names or owners.