Priority Interrupt Cable

[cro memcos]

So you know that cable that goes between some Cards on Cromemco systems,   from Priority Out to In etc.

Well with  all my recent testing my best cable has broken in one place.

Oh no!

I've tried searching for all sorts of things like

Priority Interrupt Cable

Vintage 2 pin cable 

0.1 inch 2 pin female header

Can somebody put me out of my misery and tell me what the proper name for these bits are in 2024 so I can order some new ones to make up a cable!

Or ideally a UK store that sells them for buttons.

regards marcus

[Mike Stein]

2-pin female Dupont connector/cable ?

e.g.:

https://www.ebay.com/itm/386674947140?hash=item5a079f7444:g:TJoAAOSwVuZlqyv6&amdata=enc%3AAQAIAAAA4HjWZz1JtNEaZazSldnITEfqjOU1DBMaJC94ql5N8CAg%2FWv8pJDPayHYqMKXEGzClq8UjwVlKgGzNd%2FvLo9U0x1TA4UeQ4YYMNUjVVTBKatoqtjLCs3CUFPh6xdiEsVwDAhFpirCbEcUbz1ZO2G7gWwPw3NoODXwU%2Bm%2FQsKgpTrEs8QMqFbk1pcv8ACF%2FcO9uC6rrj%2B6%2FyjigtwTKyYZVs4Tcd1R9VrtMRgnawXLMn2k17YrcHk%2BjfOVSvV3TFti6rQUEUO9V%2F49KCDBRIWA3pxMzylE8AhyFRBgFlH6lH9B%7Ctkp%3ABk9SR7C-gdyyYw

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[Amardeep Chana]

Hello Marcus,

Back in the day I used these to make the priority interrupt cable:

https://www.digikey.com/en/products/detail/te-connectivity-amp-connectors/3-640440-2/698278

They're a bit different than the original but very close.

Regards,

Amardeep

[Mike Stein]

A little tricky to connect IMO, but they'll do the job.

On the Dupont connectors you can lift the retaining tabs with a sharp knife and extract the wire; using double-ended cables you can make a daisy chain of any length.

m

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[Amardeep Chana]

Your suggestion is the better choice, Mike. I didn't see your response when I posted.  At any rate, it's good there are still ways to make them.

All the best,

Amardeep

[Arnold Mike]

Marcus

If you are still running into problems I can make one up for you. I have all the parts in my workshop.

Mike

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[cro memcos]

Dupont is the magic word.

Amazon UK sells them and I am ordering pronto

Meanwhile  I am still gobsmacked as to the efficacy of my LargeLanguageModel companion ...

thanks all,

marcus

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[Richard Deane]

As an aside, I asked Copilot for detective stories from Spain or Portugal that are translated into English , and it gave one from Spain, several set in Paris including Maigret and one from South Africa, so it still has a way to go. On a few occasions I have felt it is smug & effusive, but wrong.

Richard

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[Walt Perko]

Hi,

 

I avoid Amazon.com like the plague, but these kits are all over eBay too at really low prices. 

 

I bought one about 8 or more years ago and found I ran out of the 3s fairly fast, then the 4s and 5s went, but you can buy the specific sizes on eBay too to replenish the kit. 

 

 

 

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From: crom...@googlegroups.com On Behalf Of cro memcos
Sent: Sunday, February 11, 2024 3:48 AM
To: crom...@googlegroups.com
Subject: Re: Priority Interrupt Cable

 

 

Dupont is the magic word.

 

Amazon UK sells them and I am ordering pronto

 

 

 

Meanwhile  I am still gobsmacked as to the efficacy of my LargeLanguageModel companion ...

 

 

thanks all,

 

marcus

 

 

 

So you know that cable that goes between some Cards on Cromemco systems,   from Priority Out to In etc.

 

Well with  all my recent testing my best cable has broken in one place.

 

Oh no!

 

I've tried searching for all sorts of things like

 

Priority Interrupt Cable

Vintage 2 pin cable 

0.1 inch 2 pin female header

 

Can somebody put me out of my misery and tell me what the proper name for these bits are in 2024 so I can order some new ones to make up a cable!

 

Or ideally a UK store that sells them for buttons.

 

regards marcus

 

 

 

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[Mike Stein]

There are special crimp tools for DuPont connectors for around $20.00 but you can of course just solder them.

m

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[rlm2667]

FWIW, these, from amazon fit the priority connector exactly. With a little soldering, you can make what you need.

10PCS/lot 70cm 2 Pin Female to Female Jumper Wire Dupont Cable for 3D Printer.

https://www.amazon.com/gp/product/B07H1WDN3R/ref=ppx_yo_dt_b_search_asin_image?ie=UTF8&psc=1

Richard M

[Walt Perko]

Hi,

 

The key term is:  DUPONT … I’ve found standard Dupont jumper wires in all sizes, singles, doubles, all the way up to 140 position ribbon cables 30 feet long. 

 

IF the boards are close together in the backplane, short wires might be more desirable. 

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[Mike Stein]

Yeah, those are among the ones I pointed to on eBay; don't know about Amazon but on eBay they're available in different lengths.

As I said, if you get double-ended ones you can carefully lift the retaining tab, pull the wire out of the shell and replace it with another one to make a daisy chain as long as you need, with no soldering or crimping required at all.

m

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[Jay Cotton]

This topic led me to order the parts from DigiKey.

I'll post when I get the parts (maybe a picture).

jc

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[Mike Arnold]

Another manufacturer of these 0.1in housings back in the day was Molex. I think that the kk range was a non-reversible version but will still work on the simple pins that Cromemco used.

[Jay Cotton]

I got the DidiKey part A31080-ND in the mail and it looks perfect for creating the interrupt cable.

The connector pins are already installed, all you need is wire.  I got some 26awg stranded wire

that should just punch down on the connector end. 

There may be a tools specific to this connector, I will try with a phone patch punch down

spring loaded tool.

I will be a few weeks before I get back to the location where my cromemco boards are housed.

Until then, maybe someone could comment on the punch down tool.

tnx

jc