Mod WAHTZ WAH K-985 Manual Download Page 10

10

SECTION 4 - Wiring the Jacks, Pots, Footswitch and Terminal Strips

Please refer to DRAWING 2

1)  Strip and tin a 6 ½" piece of wire and connect the input jack's tip lug to footswitch lug 2.

Stripping and tinning wire:

Throughout these instructions you will be told to strip and tin a length 

of wire numerous times.  Unless noted otherwise, cut the wire to the length stated in the 
instructions.  Then strip ¼” of insulation off each end.  Twist each end of the stranded wire, and 
apply a small amount of solder to each end (tin the wire ends).  This will prevent the stranded wire 
from fraying and will make the final soldering much easier.  

2)  Strip and tin a 6 ½" piece of wire and connect the output jack's tip lug to footswitch lug 5.

3)  Strip and tin a 1 ¾" piece of wire and connect footswitch lugs 1 and 4 to each other.

4)  Strip and tin a 1" piece of wire and connect pot lug 1 to terminal #22.

5)  Strip and tin a 3" piece of wire and connect terminal #2 to terminal #18.

6)  Strip and tin a 3 ½" piece of wire and connect terminal #3 to terminal #20.

7)  Strip and tin a 6 ½" piece of wire and connect terminal #4 to pot lug 3.  

Do NOT solder the pot 

connection, yet.

8)  Strip and tin a 1 ½" piece of wire and connect pot lug 3 to footswitch lug 6.  

Now solder the pot 

connection.

9)  Strip and tin a 4 ½" piece of wire and connect terminal #10 to terminal #21.

10)  Strip and tin a 5 ½" piece of wire and connect terminal #6 to terminal #23.

11)  Strip and tin a 2" piece of wire and connect terminal #13 to terminal #15.

12)  Strip and tin a 4" piece of wire and connect terminal #17 to footswitch lug 3.

13)  Strip and tin a 1 ½" piece of wire and connect terminal #16 to the DC power jack's center-pin 
lug.

14)  Strip and tin a 3 ½" piece of wire and connect terminal #11 to the DC power jack's positive lug.

Tip:  Wires should be routed as close to the bottom of the base enclosure as 
possible in order to make mounting the components easier later in the assembly 
process.  Consider making wire connections to the lower terminal holes and leaving 
the upper part of the terminals for component connections.

lower holes

SECTION 5 - Mounting the Components

Please refer to DRAWING 3

1)  Connect a .22

µ

F cap to pot lug 2 and terminal #23.

Unless noted otherwise, “connect” means to trim the component’s leads to a reasonable length, wrap them tightly 
around their connection points and solder.  (See “Soldering Tips” on page 6). 

Summary of Contents for WAHTZ WAH K-985

Page 1: ...d the long life potentiometer manufactured specifically for use in wah pedals is included to provide years of smooth quiet operation Point to point construction allows advanced kit builders to easily...

Page 2: ...Allen Wrench to tighten the tension adjustment screw 12 mm Wrench to fasten the wah pot in its mounting bracket Contact Cement or other adhesive to secure the tread and pedal bumpers TABLE OF CONTENT...

Page 3: ...in 1 Rear Bumper 1 Front Bumpers 2 Bottom Cover 1 Wah Base 1 Treadle 1 Rubber Tread 1 Mounting Screws 2 M4 x 0 70 L 16 mm Rack Assembly Parts Rack 1 Small Screw 1 M3 x 0 5 L 12 mm Hex Nut 1 M3 x 0 5 S...

Page 4: ...H Terminal Strip with 8 Terminals P 0802H 2 Terminal Strip with 2 Terminals P 0201H 1 Terminal Strip with 5 Terminals P 0501H 1 DPDT Foot Switch P H498 1 Battery Clip S H155 1 4 Screws 3 8 long S HS44...

Page 5: ...k red gold 1K R A1D5K 1 1 5k Resistor W brown green red gold 1 5K R A10K 1 10k Resistor W brown black orange gold 10K R A22K 1 22k Resistor W red red orange gold 22K R A33K 1 33k Resistor W orange ora...

Page 6: ...e a good solder joint Take your time with each connection and make sure that all components are connected and will remain connected if your project is bumped or shaken Bend the component lead or wire...

Page 7: ...er holders at the toe end This will cushion the footswitch when turning the pedal on and off Front Bumper Holders Remove the backing from the rear bumper and mount it in the hole on top of the holder...

Page 8: ...w with your fingers until its head is flush with the back of the L bracket Do NOT tighten this screw yet Slide the bearing pin out and set it aside The pillow block is now aligned for final assembly B...

Page 9: ...f the adjustment screw with a 5 mm Allen wrench so that the treadle stays in place when you remove your foot and so that it suits your playing preference Base Assembly Looking at the inside surface of...

Page 10: ...terminal 4 to pot lug 3 Do NOT solder the pot connection yet 8 Strip and tin a 1 piece of wire and connect pot lug 3 to footswitch lug 6 Now solder the pot connection 9 Strip and tin a 4 piece of wir...

Page 11: ...f the wire and crimp it around the terminal with needle nose pliers 5 Connect the 33K resistor to terminals 20 and 21 6 Connect the 4 7 F cap and 100K resistor to terminals 19 and 21 Make sure the neg...

Page 12: ...the full counter clockwise position If you measure the electrical resistance between pot lugs 1 and 2 with an ohm meter at this setting you should be measuring the pot s minimum resistance i e close t...

Page 13: ...ay foam block Place the bottom cover over the base and attach the base using the feet and their mounting screws Fixing a Squeaky Wah If you find that your wah pedal is squeaking when you rock the trea...

Page 14: ...Output Jack Input Jack DRAWING 1 RING LUG TIP LUG DC Power Jack GROUND LUG TIP LUG GROUND LUG INSIDE VIEW OF THE BASE ENCLOSURE 14...

Page 15: ...ut Jack Input Jack DRAWING 2 RING LUG TIP LUG DC Power Jack GROUND LUG TIP LUG GROUND LUG INSIDE VIEW OF THE BASE ENCLOSURE 1 2 3 4 5 6 1 2 3 17 18 20 21 22 23 1 2 3 4 5 6 7 8 19 9 10 11 12 13 14 15 1...

Page 16: ...GROUND LUG TIP LUG GROUND LUG INSIDE VIEW OF THE BASE ENCLOSURE 1 2 3 4 5 6 1 2 3 17 18 20 21 22 23 1 2 3 4 5 7 8 19 9 10 11 12 14 15 16 22 33K 4 7 F35V 68K 103K 400V 1 5K 103K 400V 470K 470K 1K 10K...

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