Where could I find this type of 1/4" jack connector?

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kraal

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Hello,

I'm looking for a jack connector with the following features:
  • 1/4"
  • Single open circuit
  • Isolated switching transfer circuit (i.e. with an isolated SPDT with 3 pins ABC, no plug = AB are connected, plug inserted = BC are connected, ABC are isolated from the tip)
I found on Switchcraft website a pdf that indicates that this kind of jack seems to exist (https://www.switchcraft.com/Documents/Jack_Schematics.pdf type XIX J1-1C), but I cannot find a reference number on their website, I didn't receive an answer to my message yet. So maybe someone knows where I could get this kind of jack.

I had a look at neutrik, Rean, AEC, Cliff, with no success... so if anybody has an idea where I could buy some it would be great.
As an alternative, if somebody knows how to design a circuit as the following without this type of connector, your help would be greatly appreciated:

I have 4 jacks J1, J2, J3 and J4. If nothing is plugged into J2, the signal (tip) goes from J1 to J3, if a plug is inserted into J2, then the signal goes from J1 to J4 AND from J2 to J3. I want no external (manual) switch.

Thanks a lot for your help !

P.S. This is my first post on this forum, I hope that I did not break any rule.
 
Thanks for your reply. I saw these connectors from Philmore, but I'm not sure that the common poles are isolated from the tip/ring as I need it (according to the schematics it is not the case, but according to the text in Philmore's catalog, it seems that the dpdt switch is isolated...)
 
I saw these connectors from Philmore, but I'm not sure that the common poles are isolated from the tip/ring as I need it
I've used similar ones in the past and they have been fully isolated.
I believe the lines to the tip/ring from the contact commons are supposed to represent the contact actuator mechanism rather than electrical contacts, it's just the way they are drawn.

I think any that show a full three-contact changeover switch in addition to the socket contacts will be isolated.
 
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