You All Wire your 3PDTs Wrong

[Arcane Analog]

It has come to my attention that I, along with everyone else on the planet, have been wiring my 3PDT true bypass switching wrong. If you are not wiring it with this scheme, you are wrong.

[Bill Mountain]

It has come to my attention that I, along with everyone else on the planet, have been wiring my 3PDT true bypass switching wrong. If you are not wiring it with this scheme, you are wrong.

Says who?

What's special about this wiring?

It just looks like it grounds the input on bypass.

I just got into designing my own switching schemes.  I was tired of being clueless and just wiring them up paint-by-numbers-style.

[Arcane Analog]

It has come to my attention that I, along with everyone else on the planet, have been wiring my 3PDT true bypass switching wrong. If you are not wiring it with this scheme, you are wrong.

Says who?

What's special about this wiring?

It just looks like it grounds the input on bypass.

I just got into designing my own switching schemes.  I was tired of being clueless and just wiring them up paint-by-numbers-style.

I dunno - the Master of 3PDT switches?  Aparently this is the ONLY way one should wire a 3PDT as every other method is more prone to failure. Wired this way, the in/out have to fail in two locations to render the bypass signal mute.

Edit: I personally build a lot of high gain devices and this would be a poor way of minimizing noise and oscillation. I have yet to have a switch fail but all switches will eventually fail. That said, I am obviously an amateur and I have no idea what I am talking about.

[italianguy63]

I use wiring boards to keep the pins from moving when soldering (which causes failures too).  I guess I'm screwed.   

[Arcane Analog]

I use wiring boards to keep the pins from moving when soldering (which causes failures too).  I guess I'm screwed.   

And most important, you are wrong! Haha.

[therecordingart]

It has come to my attention that I, along with everyone else on the planet, have been wiring my 3PDT true bypass switching wrong. If you are not wiring it with this scheme, you are wrong.

EDIT: Worded wrong. I like grounding the input on high gain and stuff that oscillates, however, I like how Madbean does it better.

[Arcane Analog]

There are plenty of ways to ground the input without running the in/out wires beside each other.

[italianguy63]

I use wiring boards to keep the pins from moving when soldering (which causes failures too).  I guess I'm screwed.   

And most important, you are wrong! Haha.

[slacker]

Yeah input and output wire crossing might be a bad idea in high gain situations, arguably harder to wire than the conventional methods.

[Arcane Analog]

It is a poor method for a number of circuits - high gain being the easy one.

[bean]

This works, too.

[alanp]

"If it's stupid and it works, it's not stupid."

[electrosonic]

the in/out have to fail in two locations

What is the most common failure mode of a 3pdt switch?. Does one contact not switch or something else?

Andrew

[Arcane Analog]

the in/out have to fail in two locations

What is the most common failure mode of a 3pdt switch?. Does one contact not switch or something else?

Andrew

I do not bother to test a switch to see where it went bad. If the switch is faulty I just replace them by default. The most common for a failure in my experience is soldering technique - too much heat for too long. If the lug is easily moved it is a safe bet it has been cooked.

[deadastronaut]

i use telepathy to turn my pedals on/off...buffered by beta waves from my  sub concious

works for me, unless i get distracted by my cat..

[italianguy63]

works for me, unless i get distracted by my cat..

Me too!   

[deadastronaut]

yeah, which is inevitable...mow....mow....

[GGBB]

Wired this way, the in/out have to fail in two locations to render the bypass signal mute.

Yes ... but then we would never know about the first failure, and be using a faulty switch until a second failure occurs.  I suppose this at least extends the functional period of the pedal should either of those two locations be the first to fail (33% chance), but if we're talking normal end of life failure (not premature), then that might not be all that long.  Gotta mull this one over a bit.

[duck_arse]

ha ha! us dpdt users got no-one telling us what to how.

[Govmnt_Lacky]

Yeah input and output wire crossing might be a bad idea in high gain situations, arguably harder to wire than the conventional methods.

Using multiple poles to go from Input jack to Output jack when bypassed might cause issues too.