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3PDT 

FX TYPE: Utility 

© 2017 madbeanpedals 

 

1.05” x 0.925” H 

 

Note: The 3PDT boards are now sold as singles rather than two PCBs connected together (and 
at a cheaper price!) 

 

 

  

 

 

 

 

 
 

Terms of Use:

 You are free to use purchased circuit boards for both DIY and small commercial operations. You may not offer these

 

PCBs for resale or 

as part of a “kit” in a commercial fashion. Peer to peer re-sale is, of course, okay 

Summary of Contents for 3PDT

Page 1: ...ingles rather than two PCBs connected together and at a cheaper price Terms of Use You are free to use purchased circuit boards for both DIY and small commercial operations You may not offer these PCBs for resale or as part of a kit in a commercial fashion Peer to peer re sale is of course okay ...

Page 2: ...g or PCB pin mount 3PDT switches Note that these are designed for the ubiquitous blue CIC switches Other manufacturers may have different pin spacing that this PCB The 3PDT project includes two identical boards if purchased before Sept 2018 These boards need to be separated before using Simply break them apart with finger pressure to separate You can use wire cutters to trim any excess bridge mate...

Page 3: ...f you are using the DC OUT connection you do not need to connect the GROUND pad to the effect PCB LED CATHODE Used for MBP style boards that have the indicator LED mounted on the effect PCB This pad connects the 3PDT ground to the LED cathode to illuminate the LED when the effect is turned on EFFECT INPUT OUTPUT To connect the switch to the circuit input and output always used INPUT OUTPUT JACK TO...

Page 4: ...connections In Out In this case you will use a bypass LED soldered directly to the 3PDT board The current limiting resistor is used as well This can be as low as 1k but it really depends on the type of LED you are using and how bright you want it to be Higher resistance values will dim the LED ...

Page 5: ...5 Case 2 Here is an example of a typical MBP 1590B board The LED indicator is soldered to the 8 Ball PCB which also has the CLR already on it The DC Jack is connected directly to the effect PCB as well ...

Page 6: ...s well One point of potential confusion MBP boards from before 2016 labeled the I O connections on these top jack boards like this G L S LED I R O In this case I and O are actually the input and output jacks not the circuit input and output those are labeled S for send and R for return Starting in 2017 all new designs will use the same labels as the 3PDT board GND L IN LED J1 OUT J2 to avoid confu...

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