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Mod TONE ATTACK Instructions Manual

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Signal Output
(To Amplifier)
Use these instructions to learn:
How to build an effects pedal for boosting and cutting tones.
Shape your sound with the Tone Attack. 12 o'clock settings give an approximate unity gain with the pedal.
Rotate the treble or bass knob counterclockwise to cut the corresponding frequencies. Rotate these same
knobs clockwise to boost the frequency bands. The Master Boost knob can be used to attenuate your signal
or push your tone to screaming loud volumes.
Warning: This circuit was designed for use with a 9 VDC power supply only.
THE TONE ATTACK (K-998)
1
Copyright © 2018 by modkitsdiy.com
9 VDC
CENTER (-)
ADAPTER
Signal Input
(From Guitar)
Unplug when not in use
to save battery life.

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Summary of Contents for Mod TONE ATTACK

  • Page 1 How to build an effects pedal for boosting and cutting tones. Shape your sound with the Tone Attack. 12 o’clock settings give an approximate unity gain with the pedal. Rotate the treble or bass knob counterclockwise to cut the corresponding frequencies. Rotate these same knobs clockwise to boost the frequency bands.

  • Page 2: Table Of Contents

    TABLE OF CONTENTS TOOL LIST PARTS LIST DRAWINGS FINAL ASSEMBLY REFERENCE DRAWING SOLDERING TIPS STEP BY STEP ASSEMBLY INSTRUCTIONS 7-10 Section 1 (Drawings 1 & 2) Section 2 (Drawing 3) Section 3 (Drawing 4) Section 4 (Finishing Up) ASSEMBLY DRAWINGS (4 Drawings) 11-12 These are the last 2 pages.

  • Page 3: Parts List Drawings

    PARTS LIST 1 Stranded Wire (22 AWG) - White DC Power Jack K-PUL1569-WHITE (3 FT) S-H750 Enclosure P-H1590BBCE-DP 3PDT LED Foot Switch P-H590-RG Light Grey Knob with White Line Potentiometers: P-K380LG R-VAM50KL-SS ("B50K") R-VAM100KA-SS ("A100K") Battery Clip S-H155 #4 Screw (1/2" long) ¼”...
  • Page 4 PARTS LIST 2 270 Ω Resistor ½ W 0.22µF Capacitor R-A270 C-PEID22-100 violet brown gold 1kΩ Resistor ½ W .033µF capacitor R-A1K C-TD033-400 333K brown black gold .0068µF capacitor 10kΩ Resistor ½ W C-TD0068-630 R-A10K 682K brown black N-Channel JFET (PF5102) orange gold P-QPF5102...

  • 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. Orient the enclosure with the three 9/32" holes on top. Mount the two #4 screws in the two 1/8" holes in the middle of the chassis using two of the #4 nuts. Mount the turret board on top of the two nuts on the #4 screws.
  • Page 8 Strip and tin a 3 ½” piece of wire and connect lug 7 of the footswitch to lug 2 of the right 100K pot. Run the wire beneath the turret board. Solder both connections now. Strip and tin a 1" piece of wire and connect lugs 3 and 9 of the footswitch. Solder both connections now.

  • Page 9: Section 3 (Drawing 4)

    SECTION 3 – Mount Components to Terminal Strips Please refer to DRAWING 4. Strip and tin a 1 ¼” piece of wire and connect lug 1 of the left 50k pot to the top hole of #14. Solder the connection at lug 1 of the pot now. Strip and tin a 1 ¾”...

  • Page 10: Section 4 (Finishing Up)

    SECTION 4 – Finishing Up It’s always a good idea to thoroughly double-check your connections before applying power. This will minimize the risk of damaging components. Fasten the knobs to the potentiometer shafts by tightening their set screws. Install a 9 volt battery if needed.
  • Page 11 DRAWING 1 9/32" 9/32" 9/32" 1/8" 1/8" INSIDE VIEW OF THE ENCLOSURE 15/32" 3/8" 3/8" 3/4” DRAWING 2 B50K B50K A100K INPUT OUTPUT...
  • Page 12 DRAWING 3 B50K B50K A100K 100K INPUT OUTPUT DRAWING 4 B50K B50K A100K 100K INPUT OUTPUT...

This manual is also suitable for:

K-998

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