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© Jeds Peds 

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EOTS 

Pag

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20

 

The Footswitch. 
 

Have a look at the footswitch. It has 9 pins. The orientation of the switch is crucial. If you do it wrong 
your switch will not work, you might ruin it and you will certainly have to un do it. 
 

 

 
 

There are various ways to connect a switch to a circuit. Most people think  you get a ‘true bypass’ 
switch. It’s just a method of wiring. A switch is merely a switch.

 

 
There are two ways you can connect the switch. One uses a PCB and one involves manual wiring.  
 
I have designed a PCB specifically for the footswitch and whilst over time the layout of the  switch 
may change slightly, the mechanics of it do not. In its simplest form, it solders to the switch and the 
wires solder to its pads. 
 

 
The  two  fit  together  like  this.  Take  some  time  to 
study the footswitch and PCB. 
 

NOTE:

 the lugs run from left to right as I said above. 

 
The  PCB  has  two  sides,  it  must  go  on  like  this.  The 

other side looks quite different and does not say ‘jeds 
peds’ 

on it. 

 
 
 
 

Once you are satisfied it is on the right way then it must be soldered into place, 

but

 

don’t do it yet as 

I want to explain a second method of switch wiring that you may decide suits you better.  
 
 

 

The  pins  on  the  switch  must  run  left  to 
right like this, so the top row of pins would 
be 1, 4, and 7. 
 
If  you  put  it  in  with  1,  2, and  3  across  the 
top row you are wrong.  
 

In  reality  there  is  no  ‘pin  1’,  it’s  just  used 

here  as  a  reference.  So,  if  you  turn  it  180 
degrees,  pin  9  could  also  be  pin  1.  The 
switch will still work providing the lugs are 
horizontal. 

 

Summary of Contents for E.O.T.S

Page 1: ...e 1 TS808 MAX E O T S Pedal Kit Please read the guide in full before starting your build It contains a lot of really important information which will give you the best chance of a successful build For...

Page 2: ...bypass jedspeds co uk EOTS Page 2 1 Parts lists for this kit 2 Suggested Tools 3 A detailed overview of components 4 Populating the main PCB 5 Jacks and the Power Socket 6 The footswitch its PCB and o...

Page 3: ...D Coloured Mono Jacks x2 Power Socket 2 1mm 3PDT Footswitch PCB Supplied when stocked Please check the kit against the parts list upon receipt I hand pick kits to order and I am only human I appreciat...

Page 4: ...snipping pliers Wire stripping pliers Solder sucker de solder braid PCB Clamp Multi Meter Centre Punch Drill bits Tweezers The essential tools are all the bare minimum of what I use to build a pedal...

Page 5: ...Jeds Peds truebypass jedspeds co uk EOTS Page 5 The values above are for a simple TS808 use the values in the BOM...

Page 6: ...1 JP3 and JP5 Keep adding solder until they join You will use T1 in this kit T2 remains empty You also use fat The bright toggle is optional for all versions If you did want to add it in then you use...

Page 7: ...d aka the multiplier With a 5 band resistor the first three give you the value and the 4th gives you the zeros See the table below So the 4 band resistor above that has rings of green blue yellow and...

Page 8: ...Jeds Peds truebypass jedspeds co uk EOTS Page 8 1 resistors tend to have blue bodies 5 buff...

Page 9: ...n be various colours but usually have one or sometimes two bands at one end The symbol on the PCB will be something like this simply line up the band on the diode with the line on the board The diodes...

Page 10: ...nd side I have come across LED s orientated opposite to what I expected previously after installation so this quick test is sensible and is one less thing to debug later on Check twice solder once Tra...

Page 11: ...I do try to supply sockets for the chips so unless I am out of stock you should have one per chip Solder these in place without the chip totally protecting the chip from heat Please check you have al...

Page 12: ...10 and 63 is the max voltage Manufacturers do have other ways of indicating values though unfortunately Where things can get difficult is with poly boxes of 100nf and above sometimes you will see a 1...

Page 13: ...ild from small to big therefore step one will be to identify the resistors and any diodes inside your kit Each kit has a parts list at the top of the guide So as an example if R1 is listed as a 1M res...

Page 14: ...his by using normal wire or you can use header pins which is what I did when I prototyped others The pots have their values written on them The pins are numbered but that is not written on the part Pi...

Page 15: ...you should have soldered the various other components resistors diode transistors and capacitors etc to the board Check your soldering over before moving forwards Now connect the pots and then the tog...

Page 16: ...wo individual colours one for each tip The wires need to be long enough to go from one end of your pedal to the other as they eventually connect to the footswitch Once you have soldered two wires to e...

Page 17: ...re and I always wonder why Some PCB s are tight enough as it is without reducing your workspace to 6cm wide Now get another black wire and solder it to the pcb here Once that wire is in place take all...

Page 18: ...kicking If it s not working then you need to find out why Do not continue beyond this point until you get it working Adding a footswitch will not magically make a circuit work Troubleshooting is a nec...

Page 19: ...I am afraid but nothing to arduous Once you have de soldered the three wires clean the joints up and re solder fresh wires to them About 2 inches long will be perfect a little longer if you wish They...

Page 20: ...s simplest form it solders to the switch and the wires solder to its pads The two fit together like this Take some time to study the footswitch and PCB NOTE the lugs run from left to right as I said a...

Page 21: ...t switch the two ways I suggest are simple and effective A CLR is a current limiting resistor It reduces the voltage hitting the LED On this picture the CLR is shown as 2k2 We supply 4k7 but you can u...

Page 22: ...wires to length Take your time and think each stage through methodically Cut your wires to length before you solder them remember check twice cut once solder once Using the Foot Switch and its PCB Whi...

Page 23: ...Jeds Peds truebypass jedspeds co uk EOTS Page 23 Here is an overview of the connections on the PCB...

Page 24: ...ds soldering into position The lugs MUST face side to side as shown below The final connections are between the two boards To give you an idea about this I have shown the connections for the G and V T...

Page 25: ...ther offboard components Then one by one make the appropriate connections ensuring you use appropriate wire lengths You do not want a rats nest Once all connections are complete you should have a peda...

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