LeCroy 25MHz HV Differential Probe Teardown / Repair

[andyb]

Hey guys, I know there's been some talk about differential probes, and I managed to score a busted one off the 'bay. I tore it down and attempted a repair on my website

http://bardagjy.com/?p=1664

I haven't yet attempted calibration, curious to hear your suggestions.

[ivaylo]

This looks exactly like the BK Precision PR-60 and the Agilent N2791A probes. And same 25MHz, 700V spec and everything (it ain't Agilent nor Lecroy, would BK be the OEM?  ). In case you find service manuals for those or something. I do have the BK precision one, may open and see if they sanded off the chip ids. Looking at yours, almost certain they did though...

[qno]

They all come from Sapphire.

http://www.sapphire.com.tw/



I have one for many years. They used to put the name Sapphire on the PCB.

[andyb]

Qno, good find! There's a calibration procedure in their service docs.

Funny that they have a flashing notice about how their products have been cloned by Pintech..

[M. András]

hmm wonder what is their price directly from the oem

[plesa]

hmm wonder what is their price directly from the oem

http://www.caltestelectronics.com/ctitem/21-probe-oscilloscope-differential/CT2593-1

320USD

[Dave]

hmm wonder what is their price directly from the oem

http://www.caltestelectronics.com/ctitem/21-probe-oscilloscope-differential/CT2593-1

320USD

[tinhead]

Funny that they have a flashing notice about how their products have been cloned by Pintech..

right, and Pintech is using as well name Pintek and DKFlex (.com). But the at least very honest - Beyond Innovation, right, copycat is beyod any innovation!