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test_equipment:extender_for_tek_7000_series [2014/05/21 13:09] (current)
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| | ====== Extenders for Tek 7000 Series Oscilloscopes ====== |
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| | //Craig Sawyer has made a home brew 7xxx flexible extender a year or so ago. He has uploaded details onto his server, and he says you are welcome to download it. // |
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| | ---- |
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| | Notes |
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| | * All cables are 3 feet long (or 1 metre) |
| | * You need two donor plug in's for the support frame, and a card guide at both ends (or one, with a homebrew Al plate to support the other) |
| | * You need either a scrap 7xxx backplane from which to pillage an edge connector, or buy one from Farnell (check archives under my name for the part number) |
| | * There are circuit board layouts in various formats. Check the scaling before using - the track spacing is supposed to be 0.1" |
| | * Screened cable is RG174 |
| | * There are a couple of pics of a real Tek extender for reference |
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| | I'm **not** prepared to answer any deep questions about this - if you are interested in a roll-your-own simply adapt as necessary to make something that works. |
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| | * http://www.tech-enterprise.com/tekstuff/Extender/Flex1.DXF |
| | * http://www.tech-enterprise.com/tekstuff/Extender/Flex2.DXF |
| | * http://www.tech-enterprise.com/tekstuff/Extender/Flex1.SKF |
| | * http://www.tech-enterprise.com/tekstuff/Extender/Flex2.SKF |
| | * http://www.tech-enterprise.com/tekstuff/Extender/Flex1.WMF |
| | * http://www.tech-enterprise.com/tekstuff/Extender/Flex2.WMF |
| | * http://www.tech-enterprise.com/tekstuff/Extender/Flexibleextenderspec.xls |
| | * http://www.tech-enterprise.com/tekstuff/Extender/Flex1.doc |
| | * http://www.tech-enterprise.com/tekstuff/Extender/Flex2.doc |
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| | And posted on October 23 2004: |
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| | The flexible one can be made with a scrap frame, a circuit board, some ribbon cable, four lengths of heavy wire an six coaxes (Tek's ribbon had all of this incorporated in the ribbon itself). |
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| | The female end can be either a connector from a scrap 7000-series backplane, or a 0.1 pitch, 40-way double sided edge connector. These are available from Farnell/Newark, part number 965-996. |
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| | You pull out the end connector pins and insert a pair of 972-216 location keys. |
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| | These make the connector locate perfectly on the end of a 7000-series plug-in. |
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| | These are in fact ?McMurdo parts; here is the datasheet if you want to find them elsewhere than Farnell: |
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| | http://www.farnell.com/datasheets/11753.pdf |
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| | There really is shed loads of stuff - and by no means all from me. I can't understand why there is a problem using the search engine on the Yahoo Tekscopes site... |
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| | Craig |
