Hi everyone, please excuse this question very unrelated to LinuxCNC, but I know that here are quite some people around who are familiar with scopes and high-frequency measurements. Some who like Tek and some who don't ;)
Anyway, I've got a project where I need to measure signals with frequencies in the range 10Mhz .. 100Mhz without loading the driver itself too much (the goal is to figure out how a current control loop behaves at these frequencies, so I should not add much more phase lag just by attaching the probe). Tektronix probes of type P6158 (http://www.tek.com/sites/tek.com/files/media/media/resources/60W_12026_2_0.pdf) are available, so this is ok. What we haven't a large amount of, however, are those PCB adapters (the ones with the four ground pins, where you can stick the probe vertically into). Something like this: http://hb9etc.ch/images/tek_probe_adapter_131-4244-00.png Now the question: Does anyone here have an idea how or where to get some spares of those adapters? The part# 131-4244-00 does not seem to exist anymore. In the probe datasheet, there is 131-5031-00 listed for those adapters, but market results aren't much better for those. What I found so far is a product on Amazon: http://www.amazon.com/Tektronix-131-5031-00-Tip-Probe/dp/B00DJS7BMU This could probably be the right thing, but $184 for 25 of those thingies is also quite a number. Might be worth it, but still, if anyone has a better idea/source/offer/whatever, please tell me. Thanks! Cheers, Philipp
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