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ALL AMERICAN
C L A S S I C
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!
©2017 Stewart-MacDonald
Sheet #i-2153 Updated 2/17
P E D A L
K I T
page 1 of 12
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Summary of Contents for Stewart MacDonald ALL AMERICAN
- Page 1 Sheet #i-2153 Updated 2/17 StewMac ALL AMERICAN C L A S S I C P E D A L K I T 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.
- Page 2 Tools and supplies Tips for soldering Required: Soldering iron with fine point tip The solder joints you’ll make on the circuit board are very small, and too Solder much heat can damage the board. Wire cutter/stripper The idea is to make joints quickly, 1/2"...
- Page 3 #7313 (1) C11 Capacitor (30 pF) Parts list #7303 (1) C13 Capacitor (.0033 µF) Resistor values are indicated by colored bands, read from left to right. The first color in the code is usually the one painted #7402 (1) D1 Diode (P6KE12A) closest to a lead wire.
- Page 4 Step 1: Install thirteen resistors DC Jack R1 Resistor (47 Ω) All American Yellow Purple Black Gold Brown P78867 R2, R3 Resistors (100 kΩ) Brown Black Black Orange Brown R15 Resistor (10 kΩ) Brown Black Black Brown R4, R6, R14 Resistors (1.0 MΩ)
- Page 5 Step 2: Install the six diodes DC Jack D1 Diode (P6KE12A) All American P78867 D3, D4, D5 Red LEDs (5mm) D6, D7 Recti ers Diodes are polarized, so they need to be installed in the correct orientation. Note the stripe around one end: this marks the negative (minus) lead of the JHS Pedals Kit diode.
- Page 6 Step 3: Install fourteen capacitors C3, C15 Capacitors (1 µF) DC Jack All American P78867 C1 Capacitor (100 µF) 100uF C5, C12 Capacitors (4.7 µF) 4.7uF C7 Capacitor (2.2 µF) 2.2uF JHS Pedals Kit For Stew Mac The six capacitors shown above are polarized, and have to be installed in the OutJ correct orientation.
- Page 7 Step 4: Install the operational amplifier DC Jack All American U1 Low noise op-amp (5534 500nA) P78867 U1.2 socket for op-amp 22nJ 22nJ The operational amplifier consists of two parts: the op-amp itself (U1), and the socket it plugs into (U1.2).
- Page 8 Step 6: Install the mini toggle switch On-Off-On mini toggle switch The three-position mini toggle switch installs on the back of the board, and there is no location marker printed. Solder the switch to the three large eyelets pictured, making sure it’s flat and square to the circuit board. The switch is not directional, so it works equally well turned in either direction.
- Page 9 Step 8: Install the footswitch, then the ribbon cable Footswitch A100K A500K DC Jack All American P78867 A100K A100K 22nJ 22nJ Ribbon cable JHS Pedals Kit For Stew Mac OutJ 22nJ Install the footswitch on the back of the circuit board. The switch lugs will fit in only one of two directions;...
- Page 10 Step 11: Mount the circuit board in the case The main circuit board is held in place by the control pots and mini toggle switch. DC Jack All American P78867 Install their shafts through the top of the case, and thread flat washers onto 22nJ them on the outside.
- Page 11 Step 12: Install the LED in the mounting bezel D8 LED (5mm) DC Jack All American P78867 Like some of the caps and diodes, the D8 LED is polarized and has to be in- 22nJ stalled in a specific direction. One side of the LED has a flat edge, indicating 22nJ the negative lead.
- Page 12 Step 14: Install the DC power connector Positive DC power connector Negative DC Jack All American P78867 Insert the DC power connector so the negative lug is facing up, and tighten 22nJ it in place. The negative lug is the one with the largest metal tab.
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