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Related Manuals for StewMac International House of Overdrive
Summary of Contents for StewMac International House of Overdrive
- Page 1 INTERNATIONAL HOUSE OF OVERDRIVE CLASSIC KIWI TRANSPARENT BOOST/OVERDRIVE INSTRUCTION GUIDE...
- Page 2 Even if you’re a complete beginner, don’t worry! We go over everything from unboxing, to choosing the right soldering iron, to making every connection. We also give tips on painting your pedal. Visit: stewmac.com/pedal-build...
- Page 3 Not pictured: #1Phillips screwdriver, TOOLS AND SUPPLIES supplies to paint your pedal, clear Soldering Iron #0502 (REQUIRED OR RECOMMENDED) silicone adhesive, spray finish. Delta Solder #103460 Delta Solder #103461 PC Board Holder #0500 Power: Model #12260 requires a Solder Wick #0504 standard 9V DC center-negative power supply (not included) and...
- Page 4 TOOLS AND SUPPLIES (HELPFUL) Magnifying Glass or OptiVISOR #1685 Multimeter PM8225C #103556 Our Pedal Building Tool Set #2318 is the perfect companion for new pedal builders who do not already have a lot of tools and supplies. Soldering Aids #0521...
- Page 5 We know you are excited to get started building. PARTS LIST Note: While electrical properties That said, one of the keys to a successful build is remain the same, the appearance of taking the time to get to know all of your parts. Sort all of your pedal’s parts may vary based on availability.
- Page 6 PARTS LIST (CONT) LM741 Integrated circuit (1) 8.2V Zener diode (1) TL071 Integrated circuit (1) A50K audio taper pot (1) Integrated circuit socket (1) C50K reverse audio taper pot (1) Red LED (1) B25K linear taper pot (1) 5mm LED mounting bezel (1) 2.1mm DC power connector (1) Adhesive foam tape squares (1) 1/4"...
- Page 7 PARTS LIST (CONT) 24" of lead wire (1) Pre-drilled enclosure (1) Control knobs (3) Sticker sheet (1) 470p 220R 220R 100K 100K 100K IN GND SW OUT Circuit board [PCB] (1) IN GND SW OUT Breakout board (1)
- Page 8 (or custom decals that you can create on your own). Doing this pre-build is not only fun, but it’s much easier than disassembling the pedal to paint it once you put it together. Don’t PAINTING forget to order quality primer and lacquers from stewmac.com. YOUR PEDAL HOUSING 1.
- Page 9 UNDERSTANDING ELECTRONIC Band 1 Band 2 Band 3 Multiplier Tolerance COMPONENTS BLACK BROWN +/- 1% A number of different components are used to make an +/- 2% ORANGE 1,000 effects pedal. Here’s an overview of what they do. YELLOW 10,000 GREEN 100,000 +/- 0.5%...
- Page 10 CAPACITORS The two main uses of capacitors are to store electricity Resistors and capacitors may also be referred to and to block the flow of DC current. with shorthand notation on the printed circuit board when there is a decimal in the value. For Capacitor values are typically printed on the example, the place on the board for the 4.7K component.
- Page 11 DIODES Diodes are used where you want electricity to flow in only one direction, such as power rectification, and also to limit how much current can flow, to create “clipping” distortion. Diodes are also polarized, so they need to be installed in the correct orientation.
- Page 12 POTENTIOMETER volume in a linear fashion as you might expect. A potentiometer, or pot, is a variable As the volume increases, a greater change in signal resistor. This means, as the knob shaft is or sound pressure is required to perceive a smooth rotated, the DC resistance will change.
- Page 13 SOLDERING The solder joints you’ll make on the circuit board Here’s a few more are very small, and too much heat can damage the soldering tips that board. The idea is to make joints quickly, without scorching the holes. might be helpful: •...
- Page 14 Next, carefully snap the integrated circuit (IC) socket onto the circuit board. Make sure the u-shaped cutout matches the one on the circuit board and that ALL of the legs have penetrated the circuit board, and none have folded under the part. INSTALL THE Flip over the circuit board and solder all 8 legs of the INTEGRATED CIRCUIT (IC)
- Page 15 Like the op-amp, orientation of this diode is critical. Note that there is a black band around the diode, and on the location of the diode on the circuit board there is a white band printed on INSTALL the left-hand side. Install the diode so the band matches the 1 DIODE band on the circuit board.
- Page 16 Next, we’re going to add some resistors to our circuit board. Like in the previous step, you’ll find an outline of each resistor and its value printed in the proper location on the circuit board. Resistors are not polarized, so it doesn’t matter which direction the leads are oriented. INSTALL 13 Match resistors to the values on the circuit board, a few at a time, and solder in place.
- Page 17 The types of capacitors shown below are polarized and must be installed in the correct orientation. Note the stripe running the length of each cap; this identifies the negative (-) lead. On the circuit board, the circle for this cap’s location has a round through hole on INSTALL 3 one side, and a square through hole on the other, this is where the “+”...
- Page 18 The remaining capacitors below are not polarized. However, the best practice is to solder them in place with text facing the bottom of the circuit board. INSTALL 5 CAPACITORS WD 06 .022µF capacitor (1) .056µF capacitor (1) .01µF capacitor (1) 22nJ 56nK .082µF capacitor (1)
- Page 19 INSTALL 8 LEAD WIRES This kit comes with 24” of 22-gauge lead wire. Using the correct 22AWG slot on your wire stripper, cut the wire into eight 1-1/2” sections. Strip around 3/32” off both ends of all wires. The first four sections will attach the DC inlet and jack grounds at the top of the circuit board and the other four sections will attach the breakout board to the bottom center of the PCB.
- Page 20 Locate the three pots. If any pot has an index tab protruding from it, break it off with a pair of needle nose pliers. This will allow the pot to mount flush in the housing. PREPPING DRIVE POTS FOR • C50K • INSTALLATION VOLUME •...
- Page 21 With the component side of the circuit board facing up, maneuver the lugs of the pots and circuit board until the lugs slip into their CONNECTING THE POTS appropriate holes in the circuit board. AND FOOTSWITCH TO Once all the lugs have popped through the board, THE CIRCUIT BOARD solder them in place.
- Page 22 Like some of the caps and diodes, the LED is polarized and has to be installed in a specific direction. The LED cathode is indicated by a shorter lead, as well as a flattened surface on INSTALL the glass housing of the component. THE LED INDICATOR LIGHT...
- Page 23 INSTALL THE DC JACK Insert the DC jack into the top of the housing, making sure the longer of the two lugs is on the left. Using a 7/16” wrench or needle nose pliers, tighten the nut. Be careful not to overtighten so you don’t strip the plastic threads of the DC jack.
- Page 24 WD 12 INSTALL THE CIRCUIT BOARD AND CONNECT THE LED Lay the pedal housing face down. With the component side of the PCB facing up, carefully thread the longer positive lead of the LED through the hole marked “A” and the shorter negative lead through the hole marked “K”.
- Page 25 SOLDER DC JACK AND LED IN PLACE Solder the left lead coming from “+” on the circuit board to the longer lug of the DC jack. Next, solder the right lead marked “-“ to the shorter lug of the DC jack. Now solder both leads of the LED coming through the circuit board.
- Page 26 This kit contains two mono jacks. One will be your input jack and the other is your output jack. Insert one jack into the left side of the housing with the tip connection facing up. Add the washer and thread the nut onto the shaft enough so that the jack can rotate freely. You INSTALL may need to rotate the jack to provide easier access to setting the solder joints.
- Page 27 INSTALLING SLEEVE THE OUTPUT JACK Insert the output jack into the right side of the housing with the tip facing down. Add the washer and thread the nut on to the shaft enough so that the jack can rotate freely. SLEEVE Solder the lead marked “GND”...
- Page 28 WD HC COMPLETED VIEW With the output jack secured, this is what your pedal 470p 220R 220R should look like. 100K Attach the back cover using a #2 Phillips screwdriver. 100K 100K 22nJ 56nK Attach the knobs using a 3mm slotted screwdriver. IN GND SW OUT Congrats on a job well done! IN GND SW OUT...
- Page 29 HERE’S HOW THE CONTROLS WORK POWER Use a standard 9 volt DC power supply with a 2.1mm negative-center barrel (not included). We always recommend pedal-specific, transformer-isolated, wall-wart power supplies or supplies with separate isolated outputs. Some switching supplies, as well as some linear (non-switching) pedal power supplies can be noisy.
- Page 30 NOTES...
- Page 32 Quality you can trust. For life. TECHNICAL SUPPORT: If you have any questions before, during, or after your build, please reach out to our Tech Support Team by email at service@stewmac.com. stewmac.com ©2024 StewMac. All rights reserved. • #12260 Updated June, 2024...
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