I've grown to know and trust my P6139A probes over the years, but my students are hell on probes, and I find I have to replace a bunch every year. And at $400 a pop, it's a significant budget item. I trust your opinions; is there a magical probe out there with similar performance (500 MHz, 10 MOhm, 8pF) and a somewhat lower price tag? Thanks, Jim MacA.
Replacing Tek P6139A/B probes
Sep 08, 2011
7 Replies
It seems ecrunch has them at 160$ to 175$ each. Mind the wrapped url.
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Regards Werner
I always use these:
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They can also be bought in pairs (with less accesoires):
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There is no sense in trying to measure anything over 100MHz with a 10M probe anyway.
Failure does not prove something is impossible, failure simply
indicates you are not using the right tools...
nico@nctdevpuntnl (punt=.)
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I've used Probe Master probes and didn't have any problems with their regular probes. I think they were shorter than the Tek probes they replaced. I didn't like probe masters differential probe.
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I have a set of active fet probes I don't think I've ever used myself.
Got them with the scope. Maybe I should sell ?
Jamie
If they are decent you better keep them. At some point you may need them and you'll be sorry you sold them.
Failure does not prove something is impossible, failure simply
indicates you are not using the right tools...
nico@nctdevpuntnl (punt=.)
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Does Tek still sell just the cable for around $30 ? When I used those probes on the 3034 scope at work I'd eventually have a cable failure. I can't tell you how many times I repaired the ground pigtails and would replace them when they got too short.
G=B2
The ground pigtails are crappy. I've repaired a few. I never had to repair them on the cheaper probes I buy.
Failure does not prove something is impossible, failure simply
indicates you are not using the right tools...
nico@nctdevpuntnl (punt=.)
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