I need some help!

[Travis]

Hi, I wanna make one JHS Little Amp Box Attenuator for my FX LOOP and I wanna include a TRS female JACK to turn on or bypass it with the TRS output of my GLAB GS3.

I´m not sure how to do it correctly. How can I replace this DPDT with a Female TRS jack??

Thank everyone.

 

[Travis]

Someone could help me please? I´m not sure how to do it :/

 

[cooder]

How do the pin connection on the GS3 switch the TRS cable? Can you measure continuity on the TRS cable when you engage or disengage the function? It probably should be something like continuity on R / S when engaged and contnuity on T /S when disengaged.
From there we could make sense of the connections.

 

[Travis]

How do the pin connection on the GS3 switch the TRS cable? Can you measure continuity on the TRS cable when you engage or disengage the function? It probably should be something like continuity on R / S when engaged and contnuity on T /S when disengaged.
From there we could make sense of the connections.

Yes, it´s like that

 

[cooder]

On a TRS jack in place of footswitch connect the in (red wire in diagram) to sleeve of TRS jack.
Connect red wire of output to T of TRS jack.
Connect wiper 3 of pot to R of TRS and wiper 2 of pot to S. That means when GS3 engages the input signal goes from S to R into wiper 3 of pot and from pot wiper 2 to T into output.

If the switching works as you described on GS3 I think that should work.

 

[Travis]

On a TRS jack in place of footswitch connect the in (red wire in diagram) to sleeve of TRS jack.
Connect red wire of output to T of TRS jack.
Connect wiper 3 of pot to R of TRS and wiper 2 of pot to S. That means when GS3 engages the input signal goes from S to R into wiper 3 of pot and from pot wiper 2 to T into output.

If the switching works as you described on GS3 I think that should work.

I think so... I wish It must works thanks

 

[Travis]

Could I do It with a mono Jack??

Thanks

 

[cooder]

Could I do It with a mono Jack??

Thanks

No I don't think so.

 

[Travis]

Could I add a mini toggle to bypass the TRS ??

 

[zgrav]

you could probably use a mini dpdt toggle to do it, but that seems to miss the point of what you were trying to accomplish with your first question.

 

[Travis]

no, becouse if i want to use it without the TRS jack I cant.... Some help with the dpdt please? I try but i cant :/

 

[Travis]

On a TRS jack in place of footswitch connect the in (red wire in diagram) to sleeve of TRS jack.
Connect red wire of output to T of TRS jack.
Connect wiper 3 of pot to R of TRS and wiper 2 of pot to S. That means when GS3 engages the input signal goes from S to R into wiper 3 of pot and from pot wiper 2 to T into output.

If the switching works as you described on GS3 I think that should work.

I try this but it´s doesnt work and I try without the GS3

 

[Chas Grant]

This may work, then again it may not. I didn't test it. It is relying on electricity's property that current will take the path of least resistance. With the GS3 footswitch removed the DPDT on the box should work. For the GS3 to have control you will have to turn the DPDT on and have the GS3 plugged in. When the relay in the GS3 is open the signal should go through the pot, when its closed it should go straight to the output jack. Like I said there are no guarantees on this, I just pulled it out of my head. Also electricity is a B&@CH, it does what it wants to do, no matter what the theory behind it is!

 

[Travis]

This may work, then again it may not. I didn't test it. It is relying on electricity's property that current will take the path of least resistance. With the GS3 footswitch removed the DPDT on the box should work. For the GS3 to have control you will have to turn the DPDT on and have the GS3 plugged in. When the relay in the GS3 is open the signal should go through the pot, when its closed it should go straight to the output jack. Like I said there are no guarantees on this, I just pulled it out of my head. Also electricity is a B&@CH, it does what it wants to do, no matter what the theory behind it is! View attachment 7712

Im not sure about this, but I will try.