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Electronics => Projects, Designs, and Technical Stuff => Topic started by: Cicada on March 23, 2022, 12:33:39 pm

Title: Sheathed/Shrouded 4mm Banana Jacks on Keithley equipment
Post by: Cicada on March 23, 2022, 12:33:39 pm
Hi
The images below shows Keithley equipment internals. I would like to know what brand sheathed/shrouded 4mm Banana Jacks are used in Keithley equipment.
https://xdevs.com/doc/Keithley/6485/img/k6485_tops.jpg (https://xdevs.com/doc/Keithley/6485/img/k6485_tops.jpg)     Source page https://xdevs.com/fix/kei6485/ (https://xdevs.com/fix/kei6485/)
https://xdevs.com/doc/Keithley/2400/photo/xDevs.com/_TIM5465.jpg (https://xdevs.com/doc/Keithley/2400/photo/xDevs.com/_TIM5465.jpg)       Source page https://xdevs.com/fix/kei2400/ (https://xdevs.com/fix/kei2400/)

This looks close to what I see in the pictures. But it is not exactly the same.
https://www.digikey.co.za/en/products/detail/cal-test-electronics/CT2912-2/6005453 (https://www.digikey.co.za/en/products/detail/cal-test-electronics/CT2912-2/6005453)

So I wonder what part (brand/part number) Keithley uses in their equipment. I would like to know. My assumption is that it would be one of the best brands out there.

Can anyone tell me.
Title: Re: Sheathed/Shrouded 4mm Banana Jacks on Keithley equipment
Post by: Terry Bites on March 23, 2022, 01:43:58 pm
Multi-Contact Staubli? SEB4 or SEB4 Rseries
But push in... I dunno if thats up to scratch.
Title: Re: Sheathed/Shrouded 4mm Banana Jacks on Keithley equipment
Post by: Cicada on March 23, 2022, 03:50:19 pm
Quote from: Terry Bites on March 23, 2022, 01:43:58 pm
Multi-Contact Staubli? SEB4 or SEB4 Rseries
But push in... I dunno if thats up to scratch.


Fantastic. This forum amazes me every time.
Thanks "Terry Bites"

I also wondered about the push-in/press-fit feature. Not sure if that is the best. But it seems to be working for Keithley.

Page 74 of the catalog. https://www.staubli.com/global/en/electrical-connectors/products/t-m-products/t-m-downloads/catalogs.html (https://www.staubli.com/global/en/electrical-connectors/products/t-m-products/t-m-downloads/catalogs.html)
Picture attached.
Title: Re: Sheathed/Shrouded 4mm Banana Jacks on Keithley equipment
Post by: tooki on March 24, 2022, 02:13:38 pm
Quote from: Cicada on March 23, 2022, 03:50:19 pm
I also wondered about the push-in/press-fit feature. Not sure if that is the best. But it seems to be working for Keithley.
I think it works well if you can maintain high dimensional accuracy of the mounting holes during manufacturing. And I assume there are certain hardness requirements for the front panel material.

I’d be leery of using them in, say, cheap plastic housings drilled using a hand drill. (For those, the kind with a nut on the back are decidedly better.) But in something mass-produced in high quality, like Keithley’s front panels, or in metal drilled with a drill press and the optimum drill diameter, it’s a nice solution.

They sell a specific tool for inserting them, by the way.