Probe tip to BNC adapter - Page 1
Forum section: electronics / projects

author: Salas
author_rank: Frequent Contributor
timestamp: November 19, 2012, 01:54:48 am
content: HiI need one probe tip to BNC adapter like that in the picture I clipped from a Dave's video. Dave, is that a LeCroy PP005-BNC adapter by any chance? Or what is it, and where can I get one online? Cheers.

author: free_electron
author_rank: Super Contributor
timestamp: November 19, 2012, 02:37:51 am
content: For 3.5 mm probes you can try Cal-Test CT3655 or Tektronix 013-0254-00CAL TEST ELECTRONICS22820 SAVI RANCH PARKWAYYORBA LINDA CA 92887http://www.caltestelectronics.comCaltest is the OEM for a lot of Tektronix Probes.PMK is the OEM for a lot of LeCroy and (new-style) Agilent probesAgilent makes their own probes as well in their Colorado Facility. Anything that has the active connector ( pogo-pins that pull power from the scope is made by agilent themselves.LeCroy Doesn't make any probes apart fromt heir extreme high speed differential and active probes. Their current probes are rebadged Hioki's ( as are Agilents by the way .. )http://www.pmk-gmbh.com

author: Harvs
author_rank: Super Contributor
timestamp: November 19, 2012, 10:53:42 am
content: That would be something like this I guess?http://www.testpath.com/Items/Connector-BNC-to-Probe-Tip-Adapter-Straight-Through-Non-terminated-117-033.htmIs the advantage over a straight through BNC to BNC coax the ability to use the probes 10x/100x ranges isolating the DUT from some of the capacitance? Or something else?

author: Salas
author_rank: Frequent Contributor
timestamp: November 19, 2012, 11:55:02 am
content: Thanks for the input guys. I will try to locate something. That Tek bit is the thing, but for as much as nearly a Fluke 17B!!!By not using the crock GND loop when grounding and shielding the tip correctly in the immediate vicinity of the test node it works towards less square wave ringing and EMI, RFI, with generator or DUT when having to use a probe for less capacitance than a cable in fast rising signals. Should terminate at 50 Ohm with a feed through or tee adapter and BNC termination cap also, so to damp reflections.

author: robrenz
author_rank: Super Contributor
timestamp: November 19, 2012, 02:11:31 pm
content: I think this is what you want. Yes you will have to register to buy it or call 800-553-2769 and ask for sales. It should be a reasonable price since I got two included with all the accessories that came with a double replacement probe set for a diff amp that was only $70.00 total as a repair part direct from Lecroy.http://teledynelecroy.com/options/productdetails.aspx?modelid=107&categoryid=3&groupid=14

author: free_electron
author_rank: Super Contributor
timestamp: November 19, 2012, 02:24:16 pm
content: The caltest one is 3.5 us$....

author: robrenz
author_rank: Super Contributor
timestamp: November 19, 2012, 02:28:53 pm
content: Can't beat that.

author: Salas
author_rank: Frequent Contributor
timestamp: November 19, 2012, 02:41:43 pm
content: Quote from: robrenz on November 19, 2012, 02:11:31 pmYep, managed to secure one of the last now available Mohicans named LeCroy for $5. Looks the same as the one in the Cal Test adapter kits. Which in its own turn looks a lot alike the BNCs paraphernalia in Dave's KORAD fail video.