Isolated or Metal Bushing Jacks with NO or NC switching

[danny davis]

How do you know from looking at the schematic if this jack is Isolated plastic bushing or uses a Metal Bushing?

How do you know if the Switching is NO or NC switching?

What is the name of this jack? it's a Tip Ring Sleeve but It has a 3 switch on the jacks ground

They Call it a Remote switch Breakaway

https://www.google.com/search?q=pea...mfforum%2Findex.php%3Ftopic%3D89576.0;491;333

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Here is another picture:

https://www.google.com/search?q=peavey+valveking+212+schematic&espv=210&es_sm=93&tbm=isch&tbo=u&source=univ&sa=X&ei=mOejUoifCITooATo3oHoBg&ved=0CCwQsAQ&biw=763&bih=466#es_sm=93&espv=210&q=peavey+valveking+schematic&tbm=isch&facrc=_&imgdii=g96kIHOaMONlhM%3A%3B2Qlbe4e-X9BbHM%3Bg96kIHOaMONlhM%3A&imgrc=g96kIHOaMONlhM%3A%3BHZ2wTf6h4_-xjM%3Bhttp%253A%252F%252Fi.imgur.com%252Fvapx6.gif%3Bhttp%253A%252F%252Fwww.diystompboxes.com%252Fsmfforum%252Findex.php%253Ftopic%253D89576.0%3B491%3B333

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https://www.google.com/search?q=peavey+valveking+212+schematic&espv=210&es_sm=93&tbm=isch&tbo=u&source=univ&sa=X&ei=mOejUoifCITooATo3oHoBg&ved=0CCwQsAQ&biw=763&bih=466#es_sm=93&espv=210&q=peavey+valveking+schematic&tbm=isch&facrc=_&imgdii=g96kIHOaMONlhM%3A%3B2Qlbe4e-X9BbHM%3Bg96kIHOaMONlhM%3A&imgrc=g96kIHOaMONlhM%3A%3BHZ2wTf6h4_-xjM%3Bhttp%253A%252F%252Fi.imgur.com%252Fvapx6.gif%3Bhttp%253A%252F%252Fwww.diystompboxes.com%252Fsmfforum%252Findex.php%253Ftopic%253D89576.0%3B491%3B333

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https://www.google.com/search?q=peavey+valveking+212+schematic&espv=210&es_sm=93&tbm=isch&tbo=u&source=univ&sa=X&ei=mOejUoifCITooATo3oHoBg&ved=0CCwQsAQ&biw=763&bih=466#es_sm=93&espv=210&q=peavey+valveking+remote+switch+breakaway&tbm=isch&facrc=_&imgdii=g96kIHOaMONlhM%3A%3B2Qlbe4e-X9BbHM%3Bg96kIHOaMONlhM%3A&imgrc=g96kIHOaMONlhM%3A%3BHZ2wTf6h4_-xjM%3Bhttp%253A%252F%252Fi.imgur.com%252Fvapx6.gif%3Bhttp%253A%252F%252Fwww.diystompboxes.com%252Fsmfforum%252Findex.php%253Ftopic%253D89576.0%3B491%3B333

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[FvM]

You can safely assume that it's a standard isolated & switched 1/4" stereo jack like Cliff CL1220A https://www.cliffuk.co.uk/products/jacksockets/s2.htm

The isolation point is obvious from the existence of the 10 ohms ground series resistor.

P.S.: NO or NC can be well read from the schematic, you need to read however,

 

[danny davis]

The isolation point is obvious from the existence of the 10 ohms ground series resistor.

What is this 10ohm ground series resistor used for? ground loops? but how is it working?

Why would they have a Switch inside the jack to have the isolation point NO when a plug was inserted into the jack?

What's the point of having an isolation switch inside the jack?

 

[danny davis]

What are these jacks called?




What is jack C called?

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Jack B is a Tip and Ring

Jack D is a Tip , Ring, Sleeve, With NC switches?

What is Jack C called?

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Tip Shunt, Ring Shunt, Sleeve Shunt

Some jacks shunts are either NC or NO

Why do they use a Sleeve Shunt also? for the REMOTE BREAKAWAY SWITCH?

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What is this jacks name called?

Where do you find these Jack schematics ? so I can look them up to know what the names of them are and to order the right one?

There is so many that are Tip, Ring , Sleeve, Some are NO or NC, some have Tip shunts, Ring shunts, Sleeve shunts

But where do you find the jack schematics to see which jack is the right one?

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some jacks have a "Transfer Switching" I need the jack schematic for this
some jacks have a "Isolated Switching" I need the jack schematic for this

What is the Transfer switching used for?

What is the Isolated Switching used for?

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I just found the Jack Schematics , do you guys know any others please

http://www.surplussales.com/Connectors/pdf/Jack-Schematics.pdf

 

[danny davis]

It's hard for me to tell the difference between a SHUNT switch , Transfer switch, Isolated switch

They all look the same to me

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do you know the name of this jack? it has a Sleeve shunt
https://www.google.com/search?q=peav....0%3B491%3B333

Or why it has a Sleeve Shunt? I don't see these much with a Shunt on the Sleeve

A plus in this jack will NO the shunt, why ?