background image

stewmac.com

 

©2017 Stewart-MacDonald 

page 1 of 12

Sheet #i-2153  Updated 2/17

Assembly Instructions

The 

ALL-AMERICAN

 is one of the great stompboxes from 

JHS, makers of high-end effects pedals. Whenever JHS adds 
a new pedal to their line, they retire an existing design. 
This means great JHS pedals like the 

ALL-AMERICAN

 have 

become rare and sought-after. You can’t buy one, but you 
can build yourself one—and it's fun!

The 

ALL-AMERICAN

 is based on the original ProCo Rat, 

an early distortion pedal designed and built in Kalamazoo, 
Michigan in the 1970s. Vintage Rat pedals are one of the 
most sought after overdrive pedals out there. Favored by 
such greats as Joe Perry, Nels Cline, and David Gilmour The 
Rat is known for its unbelievable range of tones, spanning 
from clean/grit all the way to compressed sustaining fuzz. 

JHS tweaked the Rat circuit for a more focused frequency 
range with tamed highs. The result is the 

ALL-AMERICAN

. Its 

bass and mids melt perfectly into a combination that’ll make 
a 1x12 combo sound like you have a stack of cabs backstage. 

The addition of a sweep knob gives instant control over the 
feel of the gain structure as a whole. JHS also gave the 

ALL-

AMERICAN

 a three-way gain switch, allowing LED/Silicon/

Open clipping for one explosively versatile pedal!

C L A S S I C   P E D A L   K I T

ALL AMERICAN

StewMac

Easy instructio

ns!

Clear pictures sho

w where

each part goes

.

Summary of Contents for ALL AMERICAN

Page 1: ...t sought after overdrive pedals out there Favored by such greats as Joe Perry Nels Cline and David Gilmour The Rat is known for its unbelievable range of tones spanning from clean grit all the way to compressed sustaining fuzz JHS tweaked the Rat circuit for a more focused frequency rangewithtamedhighs TheresultistheALL AMERICAN Its bassandmidsmeltperfectlyintoacombinationthat llmake a 1x12 combo ...

Page 2: ...nts in place for soldering by threading the leads through the board and bending them apart on the reverse side Makeyoursolderjointsonthereverseside Insertthetipinto the eyelet and let it heat for 4 5 seconds before touching it with solder This heats the contact enough for the solder to flow nicely without damage You don t need much solder just enough to fill the eyelet After soldering trim away th...

Page 3: ...3 D4 D5 Red LEDs 5mm 7422 1 D8 White LED 5mm 7402 1 D1 Diode P6KE12A 7303 1 C13 Capacitor 0033 µF 7313 1 C11 Capacitor 30 pF 7309 1 C8 Capacitor 100 pF 102J K5J 100 1uF 4 7uF 7314 2 C3 C15 Capacitors 1 µF 7316 2 C5 C12 Capacitors 4 7µF 2 2uF 7315 1 C7 Capacitor 2 2 µF 7404 2 D6 D7 Rectifiers 1n4001 7483 1 Q1 Transistor 2n5458 7465 1 On Off On mini toggle switch 7318 1 Ribbon cable 22NJ 3n3K MMK BF...

Page 4: ...12 C1 Q1 D4 D3 D5 D6 D7 C5 C12 C15 C7 C3 R16 C6 C9 C13 C8 C2 U1 C11 C14 C4 R4 R6 R14 Resistors 1 0 MΩ Brown Black Black Yellow Brown Brown Black Black Red Brown R15 Resistor 10 kΩ R5 R9 R11 Resistors 1 kΩ Brown Black Black Brown Brown Brown Black Black Brown Brown R17 Resistor 1 kΩ Step 1 Install thirteen resistors Resistorshavealowprofile sittingclosertotheboardthantallercomponents so install the...

Page 5: ...on t fit into the eyelets in the circuit board trim them at a steep angle to create sharp points that fit into the holes Next install the three clipping diodes D3 D4 and D5on their location marks These red LEDs Light Emitting Diodes are polarized and need to be installed in a the correct orientation On the circuit board their location marks indicate a flat on one side This matches the slight flat ...

Page 6: ... Mac DC Jack All American InJ D8 T S T S R1 R2 R3 R4 R17 R13 R14 R15 R5 R6 R7 R9 R11 D1 OutJ P78867 R8 R10 S1 R12 C1 Q1 D4 D3 D5 D6 D7 C5 C12 C15 C7 C3 R16 C6 C9 C13 C8 C2 U1 C11 C14 C4 C6 Capacitor 001 µF C11 Capacitor 30 pF C8 Capacitor 100 pF 102J K5J 100 C1 Capacitor 100 µF 100uF 1uF C3 C15 Capacitors 1 µF JHS Pedals Kit For Stew Mac DC Jack All American InJ D8 T S T S R1 R2 R3 R4 R17 R13 R14 ...

Page 7: ... position marker has a small notch at one end Align the similar notch in socket U1 2 when installing the socket 2 The U1 position marker has a dot in one corner There is a dot molded into the corner of op amp U1 Align these corners when pressing the op amp into place SoldersocketU1 2totheboard Theop ampU1thensnapsinwithoutsolder This feature allows you to try different op amps with no soldering U1...

Page 8: ...three connecting lugs the illustration in Step 8 shows the three pots in position on the board Each pot has an index pin protruding from the case Break off this pin before installation so the pot will mount flush against the pedal case Needle nose pliers work well for removing the pins Use the adhesive foam tape to insulate the back of the pot from the soldered leads of the other parts Solder the ...

Page 9: ... the nine eyelets so the switch sits flush making contact all around Solder one lug and let it cool This holds the switch in place while you solder the remaining lugs Next install the ribboncable Insert the cable leads through the front of the board and solder them in place on the back A100K A100K A100K B1K B1K Footswitch Ribbon cable A500K JHS Pedals Kit For Stew Mac DC Jack All American InJ D8 T...

Page 10: ... and the two jacks Install the plastic mounting bezel for the LED indicator by pressing it in from the outside through the top of the case Spread the tabs open inside the case to hold it in place Install the input and output jacks on the sides of the case Keep the lugs facing up so you ll have easy access when it s time to solder them LED mounting bezel Two jacks JHS Pedals Kit For Stew Mac DC Jac...

Page 11: ...t edge indicating the negative lead Another indication is that the negative lead is shorter than the positive The circle marking the D8 location on the switch circuit board has a corresponding flat to indicate the mounting orientation Insert the LED into the bezel It will be held in place by soldering it to the switch circuit board in Step 13 but for a more secure mount you can run a bead of clear...

Page 12: ...sonthetherightandthenegativeisontheleft This pedal requires a standard 9V DC center negative power supply not included and consumes less than 100mA There s no battery option JHS Pedals Kit For Stew Mac DC Jack All American InJ T S T S R1 R2 R3 R4 R17 R13 R14 R15 R5 R6 R7 R9 R11 D1 OutJ P78867 R8 R10 S1 R12 C1 Q1 D4 D3 D5 D6 D7 C5 C12 C15 C7 C3 R16 C6 C9 C13 C8 C2 U1 C11 C14 C4 22nJ 22nJ 22nJ 22nJ ...

Reviews: