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Example Project: Tektronix TekProbe Adapter/Breakout

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voltsandjolts:
I have some TekProbes which I wanted to use on another brand of 'scope so made this adapter board.
Signal path feeds straight through on a BNC coupler.
Requires +/-18VDC supply preferably from current limited dual channel bench supply.

Overview PDF  1.2MB :
https://filedn.com/l5C6rr68NJOFlFbvMqdgEzu/EEVBlog/adapter.PDF

CircuitStudio Project  8.3MB :
https://filedn.com/l5C6rr68NJOFlFbvMqdgEzu/EEVBlog/TekProbeAdapterEEVBlog2.zip
 

JamesH-AltiumOfficial:
Hi voltsandjolts,

Thank you for posting your useful project! It's nicely documented and good to see CircuitStudio in use.

Also it's nice to see that you used the little known Guides feature to add guides for alignment.
For others:
Home > Board > Board Options > Guides button, opens the Snap Guide Manager.
Click the Add button to add a guide and click the ... button to snap to an object on your board.
It will snap to the object like a pad center if (Hotspot Snap) or (Hotspot Snap (All Layers)) is displayed in the Status Bar. Press Shift E to cycle through the 3 Electrical snap modes.

In the Board Options dialog, enable the Snap To Linear Guides if you'd like objects to snap to them.

Best regards,

James Harriman
Altium

KE5FX:
I'd totally buy one of these if you were selling them.  :-+  (Same Agilent scope, same Tek probes.)  How about some pogo pins for the Agilent probe interface, instead of requiring an external supply?  The voltages you need might already be available.

tggzzz:
Consider posting the gerber files, or some PCB houses allow you to make the design available for anyone to buy (e.g. dirtypcbs.com)

MarkL:

--- Quote from: KE5FX on May 09, 2017, 05:53:36 am ---I'd totally buy one of these if you were selling them.  :-+  (Same Agilent scope, same Tek probes.)  How about some pogo pins for the Agilent probe interface, instead of requiring an external supply?  The voltages you need might already be available.

--- End quote ---
Unfortunately, the TekProbe interface needs +/15V and the Agilent autoprobe interface only supplies +/-12V.  There's some discussion of autoprobe here:

  https://www.eevblog.com/forum/projects/agilent-probe-interface-(-autoprobe-and-probe-id)/msg42290/#msg42290

Agilent/Keysight solves this problem by putting DC-DC converters in their N2744A TekProbe adapter.  So it's possible, but more complicated.

A lot of Agilent/Keysight scopes are fairly limited in the power available from the autoprobe interface anyway, so the external power supply I don't think is so bad.  Ideally, a solution could implement both by getting power from the autoprobe interface for low power probes, with an option for external power if more is needed.

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