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Signal Output
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Use these instructions to learn:
How to build an effects pedal for aggressive distortion sounds.
The Aggressor was designed to melt your face off. It's an aggressive distortion pedal with a mid-shift switch
that allows for an instantaneous scoop or bump of the mid frequencies.
Warning: This circuit was designed for use with a 9 VDC power supply only.
THE AGGRESSOR (K-995)
1
Copyright © 2016 by modkitsdiy.com
9 VDC
CENTER (-)
ADAPTER
Signal Input
(From Guitar)
Unplug when not in use
to save battery life.
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Table of Contents
Related Manuals for Mod Aggressor
Summary of Contents for Mod Aggressor
- Page 1 How to build an effects pedal for aggressive distortion sounds. The Aggressor was designed to melt your face off. It's an aggressive distortion pedal with a mid-shift switch that allows for an instantaneous scoop or bump of the mid frequencies.
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Page 2: Table Of Contents
TABLE OF CONTENTS TOOL LIST p. 2 PARTS LIST DRAWINGS pp. 3, 4 FINAL ASSEMBLY REFERENCE DRAWING p. 5 SOLDERING TIPS p. 6 STEP BY STEP ASSEMBLY INSTRUCTIONS pp. 7 - 11 Section 1 - Mount Large Components p. 7 Section 2 - Wire Large Components p. -
Page 3: Parts List Drawings
PARTS LIST 1 Stranded Wire (22 AWG) - White 3PDT Foot Switch K-PUL1569-WHITE (5 FT) P-H501 Enclosure P-H1590BBCE-DB Potentiometers: R-VAM10KL-SS ("B10K") R-VAM100KL-SS ("B100K") R-VAM100KA-SS ("A100K") Clear Knob with Black Line Terminal Strip with 8 Terminals P-K380CL P-0802H Battery Clip S-H155 #4 Screw (3/8"... - Page 4 PARTS LIST 2 NPN Darlington (MPSA13) 220pF Capacitor 500V 180 Ω Resistor ½ W P-QMPSA13 C-D220-500 R-A180 221K brown grey brown E B C gold NPN BJT (2N5088) 470pF Capacitor 2kV 8.2kΩ Resistor ½ W P-Q2N5088 C-D470-2000 R-A8D2K 471K 8.2K 5088 grey E B C...
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Page 5: Final Assembly Reference Drawing
FINAL ASSEMBLY REFERENCE DRAWING This is a large version of the final assembly drawing. Refer to this drawing as you make your way through each step of the instructions. Before you make a new connection at a particular terminal or solder lug, notice how many other connections will be made at that terminal. That way you can decide whether it’s best for you to solder the connection and leave space open for future connections or hold off on soldering until after every connection at that location has been made. -
Page 6: Soldering Tips
SOLDERING TIPS It is important to make a good solder joint at each connection point. A cold solder joint is a connection that may look connected but is actually disconnected or intermittently connected. (A cold solder joint can keep your project from working.) Follow these tips to make a good solder joint. -
Page 7: Step By Step Assembly Instructions
SECTION 1 – Mount Large Components Please refer to DRAWING 1 and DRAWING 2. The Anode (+) side of the LED is Orient the enclosure with the three 9/32" holes on top. indicated by a slightly longer lead and/or a positive sign. Mount the LED and bezel holder in the ¼”... - Page 8 Tip: Some terminals will have three or more wire/component connections which can make it difficult to find room for everything that needs to be connect to that terminal. In this case, we will provide a warning and suggest connecting wires to the lower terminal holes.
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Page 9: Section 3 - Mount Components To Terminal Strips
Strip and tin a 2 ½" piece of wire and connect tone pot lug 1 to toggle switch lug 2. (Do not solder the connection on lug 1 of the tone pot, yet). Strip and tin a 1 ½" piece of wire and connect tone pot lug 2 to volume pot lug 1. Strip and tin a 1 ½"... - Page 10 Connect the 10K resistor from terminal #16 to #15. Connect the positive (+) lead of the 4.7µF capacitor to terminal #15 and connect its negative (-) lead to terminal #18. Connect the 470pF cap from terminal #13 to #14. Mount this cap upside down and position it so there will be room to mount components above it later.
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Page 11: Section 4 - Finishing Up
Connect the 180Ω resistor from terminal #3 to footswitch lug 5. ½" Tip: To prevent the resistor from shorting to the other lugs, insulate that lead of the ¾" resistor. Strip a ½" piece of insulation from the wire provided. Next, cut one lead of the resistor to a length of ¾". -
Page 12: Assembly Drawings (5 Drawings)
DRAWING 1 9/32" 9/32" 1/4" 9/32" 1/8" 1/8" 1/4" 1/8" 1/8" INSIDE VIEW OF THE ENCLOSURE 15/32" 1/8" 1/8" 15/32" 3/8" 3/8" DRAWING 2 Distortion Tone Volume B10K B100K A100K INPUT OUTPUT... - Page 13 DRAWING 3 Distortion Tone Volume B10K B100K A100K RING SLEEVE SLEEVE INPUT OUTPUT DRAWING 4 Distortion Tone Volume B10K B100K A100K .01µ .0039µ .0039µ .22µF .1µF 470p .1µF .047µ 8.2K RING SLEEVE SLEEVE...
- Page 14 DRAWING 5 Distortion Tone Volume B10K B100K A100K .01µ .0039µ .0039µ .22µF .1µF 5088 470p .1µF .047µ 8.2K RING SLEEVE SLEEVE...
- Page 15 The Aggressor Troubleshooting Supplement Distortion Tone Volume After thoroughly double-checking your connections, the next step is to take DC voltage measurements to help locate problem areas. B10K B100K A100K Using a volt meter, connect the ground side lead of the meter to any ground point on the pedal.
- Page 16 MPSA13 P-H541 P-H501 MPSA18 NPN Darlington Transistor NPN BJT DPDT "Mid-Shift" 3PDT Collector Toggle Switch Footswitch Base MPSA13 Emitter www.modkitsdiy.com Copyright © 2014 by modkitsdiy.com “The Aggressor” (K-995) Schematic...
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