Looking for a source of 1mm test sockets for old Ortec NIM 402H crates (401C FP)

Dear All, I am looking for a source of replacement single pin panel mount sockets for repairs to some of these elderly NIM crates I have. The sockets provide a FP source of the rail voltages the PSU produces on its module back-plane connectors and can be seen here (presumed the same),

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in the BR of the picture (7-off, colour white) on a more recent crate model. They mate with a 1mm dia. pin plug, are secured by a nut on the back of the panel and have a cut-out hole of ~4.8mm dia..

I could not find any part numbers in the manuals/documentation on

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18Manuals/NIM Manuals/NIM/ORTEC for these sockets. They are just referred to as "test jacks".

The closest I could find was

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but that has a panel cut-out of only 2.7mm. I'm stumped. Any ideas?

Thanks Tom Crane

Ps. The email address in the header is just a spam-trap.

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Tom Crane, Dept. Physics, Royal Holloway, University of London, Egham Hill, 
Egham, Surrey, TW20 0EX, England.  
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I presume it's something very like this:

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whit3rd

whit3rd wrote: : On Monday, February 11, 2019 at 11:53:54 AM UTC-8, Use-Author-Suppli...@127.1 wrote: : > Dear All, : > I am looking for a source of replacement single pin panel mount : > sockets for repairs to some of these elderly NIM crates I have.

: I presume it's something very like this: :

Thanks for the suggestion. That is similar but a press-fit type and is for a 2mm plug.

Here

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are some photos. The first two are of some sockets and plugs I found in one of my spares draws, purchased by one of my now-retired predecessors, probably years ago. I checked the plugs' pins which are definitely

1mm dia. Curiously the sockets would not accept them -- the 1mm pins are just too fat. So it appears there must have been sockets made for less than 1mm dia. pin plugs in the past.

The other 2 photos are of a NIM crate's FP showing the sockets, some of which are broken. These sockets definitely take the 1mm plugs. Other than in the pin receptacle size they appear identical to my spares draws sockets.

Yesterday I spoke to a colleague who thought he might have some similar sockets in a box amongst his old spares. He did. His sockets did take the 1mm plugs w/o problem which will now enable me to do the repair jobs. Interestingly his box still had the suppliers labels present. They were from RS Components with stock nos. 444-062 and

444-056 (for red & black types). RS's website lists them as 'discontinued'. RS confirmed this and told me the manufacturer was Deltron. I could not find them listed so presume Deltron no longer makes them.

The photo of a current Ortec crate I linked to in the OP has quite similar looking sockets, although obviously the pin-size can't be deduced from it. Unless Ortec now use some other pin size sockets, it must be that similar sockets are still available from other suppliers... I contacted Ortec (now Ametek)'s tech support but have not heard back from them yet.

Regards Tom Crane.

Ps. The email address in the header is just a spam-trap.

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Tom Crane, Dept. Physics, Royal Holloway, University of London, Egham Hill, 
Egham, Surrey, TW20 0EX, England.  
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Hi Tom... well I spent a little time searching... No luck. Hopefully the Ortec/ Ametek will be able to help you.

Here in the States we have ~2mm tip jacks which fit the probes on your typical DMM. As a silly idea maybe replace all the connectors with 2 mm tip jacks?

George H.

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ggherold

That was my thought as well.

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