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Looking for individually screened ribbon cable
CambridgeMart:
I'm looking to make up some probe sets for my TLA logic analyser as used cables are insanely expensive; the original cable uses individually screened ribbon cable, as seen here:
https://www.eevblog.com/forum/testgear/tektronix-714-logic-analyzer/?action=dlattach;attach=338150;image
I've searched high and low but cannot find anything like it. Has anyone come across this type of cable?
ucanel:
If you could not find exact one,
would it be enough to instead of using 8 row individually shielded cable use whole shielded 16 row cable and connect odd lines as shield either.
NiHaoMike:
Maybe old external SCSI cable? Not the same shape but it's designed to carry many high speed digital signals with minimal crosstalk between them.
jmelson:
Spectra-Strip made a clone of the AMP coaxial ribbon cable. I first saw it in the backplane to backplane extension jumpers of the VAX 11/780. AMP stopped making it, but Spectra-Strip apparently kept the tooling and will make it on order. We needed a bunch, and had them make 2000 feet for us, 17 coax conductors, 50 Ohms. I think they can also make it in 75 and 91 Ohm impedance. We had our shop build a mass termination stripper and press.
Jon
jmelson:
My 9200 / DAS 720 uses some very wide ribbon, looks a lot like Chabin cables. It has two different wire sizes, I THINK the grounds are larger diameter, and there are two grounds between every signal. This is used with the 92A96 acq boards. The probe pods are totally passive (series resistor with small parallel cap.)
Jon
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