Skeptical Buffer Switchable Loop Wiring Diagram

[Robert]

I've had a few people ask about adding the switchable loop send / receive jacks to the Skeptical Buffer so here's a quick and dirty diagram.

It's pretty simple, you just need 1/4" jacks with switched tip terminals like these (or similar):

6.35mm 1/4" Stereo Phone Jack

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www.taydaelectronics.com

Just to keep things clearer this diagram doesn't show the ground wires to the 1/4" jacks so be sure you ground at least one of them.

The orange wires go to the TIP lugs of the IN/OUT jacks, like normal.

The blue wires go to the TIP lugs of the LOOP SEND/RECV jacks.

The purple wire at the top connects the SWITCHED TIP lug of the LOOP SEND to the SWITCHED TIP lug of the LOOP RECV.

 

[servusjon]

You are a star

 

[CottonJennings]

@Robert what size enclosure did you use?

 

[Robert]

I haven't built it with the loop jacks but you'd need a 1590BB or some clever jack placement.

 

[geoffrey]

I've had a few people ask about adding the switchable loop send / receive jacks to the Skeptical Buffer so here's a quick and dirty diagram.

It's pretty simple, you just need 1/4" jacks with switched tip terminals like these (or similar):

6.35mm 1/4" Stereo Phone Jack

Get It Fast - Same Day Shipping

www.taydaelectronics.com

Just to keep things clearer this diagram doesn't show the ground wires to the 1/4" jacks so be sure you ground at least one of them.

The orange wires go to the TIP lugs of the IN/OUT jacks, like normal.

The blue wires go to the TIP lugs of the LOOP SEND/RECV jacks.

The purple wire at the top connects the SWITCHED TIP lug of the LOOP SEND to the SWITCHED TIP lug of the LOOP RECV.

So I only need the switch tipped terminal jacks for the send/receive loop jacks, correct? I can use typical mono jacks for the In/out jacks, correct?

 

[Robert]

So I only need the switch tipped terminal jacks for the send/receive loop jacks, correct? I can use typical mono jacks for the In/out jacks, correct?

Correct.

 

[ThePanda]

So I only need the switch tipped terminal jacks for the send/receive loop jacks, correct? I can use typical mono jacks for the In/out jacks, correct?

As an alternative, I used a switchcraft mono and switchcraft shunt jacks for mine.
But I shoved mine into a 125B enclosure so the fit was extremely tight.

 

[geoffrey]

As an alternative, I used a switchcraft mono and switchcraft shunt jacks for mine.
But I shoved mine into a 125B enclosure so the fit was extremely tight.

Forgive my ignorance, but the shunt jack would be for the "Send" and the Mono would be for the "Receive," Yes?

 

[ThePanda]

Forgive my ignorance, but the shunt jack would be for the "Send" and the Mono would be for the "Receive," Yes?

Yes.
Here is my build report for reference.

Skeptical Buffer V2 w/ Loop

This pedal was a nice easy build. The biggest challenge was getting the loop working correctly. Thankfully, I had left over shorting jacks from my first amp build. I used one Switchcraft Type 12A and one Switchcraft Type 11. As for the sound of the pedal, I can see how it may help if you have a...

forum.pedalpcb.com

(edit: Also I posted it on here https://forum.pedalpcb.com/threads/psa-skeptical-buffer-send-return.17842/ Robert's design in the above post looks a lot better and easier)

Also the way Robert has it wired those are Shunt jacks.

 

[Feral Feline]

I wanted to contain all relevant info in the thread in one go, I hope all is still clear: