StewMac JHS 808 Assembly Instructions Manual Download

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Step 15: Wire the input/output jacks

On the circuit board, the input and output jack leads are labeled

InJ

and

OutJ

The leads are also labeled

for tip, and

for sleeve. Looking at a jack, you’ll

see that the sleeve lug is attached to the threaded shaft. The tip lug connects
to the spring metal piece that contacts the tip of a guitar cord.

Solder these four leads as shown to finish the assembly.

Screw the bottom onto the case and add the control knobs.

Plug in and rock out!

Here’s how to use the

JHS808

Step 14: Install the DC power connector

Insert the

DC power connector

so the negative lug is facing up, and tighten

it in place. The negative lug is the one with the largest metal tab.

Solder the installed leads from the circuit board to the jack. Where they attach
to the board, the positive lead is on the the right and the negative is on the left.

JHS Pedals Kit

For Stew Mac

DC Jack

JHS808

S
T

R23

R10

R11

R18

R14

OutJ

InJ

P78868

C15

C14

C12

C10

R12

R21

R13

R15

R20

R22

R16

R17

R19

R8
R6
R7

D7 D3

C13

.22J63

.1J63

47nJ

1J63

DC power connector

Negative

Positive

JHS Pedals Kit

For Stew Mac

DC Jack

JHS808

S
T

R23

R10

R11

R18

R14

OutJ

InJ

P78868

C15

C14

C12

C10

R12

R21

R13

R15

R20

R22

R16

R17

R19

R8
R6
R7

D7 D3

C13

.22J63

.1J63

47nJ

1J63

Volume

Overall output level

Tone

Adjusts the top end

Drive

Dial in more

or less overdrive

3-way gain switch

Three tone options:

•

Up: LED clipping

•

Middle: Open boost

•

Down: Silicon clipping

Requires 9V DC

center-negative power

supply (not included)

Output

Input

Footswitch

On/Off

LED Indicator

On/Off

Summary of Contents for JHS 808

Page 1: ...banez introduced the TS 808 Tube Screamer possibly the most famous overdrive pedal ever made Favored by many discriminating guitarists including StevieRayVaughan EricJohnson andJoeBonamassa Often copied or modded the Tube Screamer circuit has become the platform for most modern overdrive pedals Using an original vintage TS 808 as a starting point Josh Scott modded the circuit to include a three wa...

Page 2: ...e on metal will work well on the kit case Spray paints like Rustoleum or Krylon are a durable finish You might want to paint the case before building the kit so you won t need to take the parts back out for painting A way to add custom graphics is to print them from your computer onto waterslide decal paper If you use decals protect them from scratches by spraying clear topcoats over them Tools an...

Page 3: ...k Brown Brown Green Brown Black Red Brown Brown Black Black Black Brown 1 R21 Resistor 100 Ω 1 R23 Resistor 47 Ω Yellow Purple Black Gold Brown Green Brown Yellow Gold 2 R6 R19 Resistors 510 kΩ Brown Black Black Brown Brown Red Red Black Black Brown 1 R15 Resistor 220 Ω 22J63 47NJ NPO 51J 27nJ63 100uF 2 C3 C4 Capacitors 100 µF 2 C9 C10 Capacitors 22 µF 2 Q1 Q2 Transistors 2n3904 1J63 1J63 1 On Off...

Page 4: ...Stew Mac DC Jack JHS808 D8 T S S T R1 R23 R10 R11 R18 R14 D5 D4 D1 OutJ InJ P78868 Q1 Q2 C4 C3 C1 C15 C14 C8 C12 C5 C7 C10 C9 C2 R2 R12 R21 R13 R15 R4 R5 R20 R22 R3 R9 R16 R17 R19 R8 R6 R7 D7 D3 D2 U1 C6 C13 R10 Resistor 51 kΩ Green Brown Black Red Brown R7 R8 R13 R20 R22 Resistors 10 kΩ Brown Black Black Red Brown Green Brown Yellow Gold R6 R19 Resistors 510 kΩ R4 Resistor 2 2 MΩ Red Red Black Ye...

Page 5: ...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 two red LED Light Emitting Diodes clipping diodes D4 and D5 on their location marks These are also polarized and need to be installed in the correct orientation On the circuit board their location marks indicate a flat on one side This matches the slight flat on on...

Page 6: ...R9 R16 R17 R19 R8 R6 R7 D7 D3 D2 U1 C6 C13 C2 C12 C14 Capacitors 1 µF 22J63 C9 C10 Capacitors 22 µF 1J63 C8 Capacitor 51 pF NPO 51J C7 Capacitor 047 µF 47NJ C6 C13 Capacitors 1 µF 1J63 C5 Capacitor 027 µF 27nJ63 The four capacitors shown above are polarized and have to be installed in the correct orientation Note the white stripe running the length of each cap this identifies the negative minus le...

Page 7: ... 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 JHS Pedals Kit For Stew Mac DC...

Page 8: ...f the board Each pot has 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 Usetheadhesivefoamtapetoinsulatethebackofthepotfromthesoldered leads of the other parts ...

Page 9: ...s 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 JHS Pedals Kit For Stew Mac DC Jack JHS808 D8 T S S T R1 R23 R10 R11 R18 R14 D5 D4 D1 OutJ InJ P78868 C4 C3 C1 C15 C14 C8 C12 C5 C7 C10 C9 C2 R2 R12...

Page 10: ...LED mounting bezel 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 JHS Pedals Kit For Stew Mac DC Jack JHS808 T S S T R1...

Page 11: ... 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 silicone adhesive around the LED a...

Page 12: ...hejack Wheretheyattach totheboard thepositiveleadisonthetherightandthenegativeisontheleft JHS Pedals Kit For Stew Mac DC Jack JHS808 T S S T R1 R23 R10 R11 R18 R14 D5 D4 D1 OutJ InJ P78868 C4 C3 C1 C15 C14 C8 C12 C5 C7 C10 C9 C2 R2 R12 R21 R13 R15 R4 R5 R20 R22 R3 R9 R16 R17 R19 R8 R6 R7 D7 D3 D2 U1 C6 C13 22J63 22J63 1J63 1J63 1J63 47nJ Q2 Q1 U1 1J63 1J63 D8 DC power connector Negative Positive J...

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StewMac JHS 808, Assembly Instructions Manual

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