Tektronix Oscilloscope Probe Readout Pin? What is if for?
Tektronix Oscilloscope Probe Readout Pin? What is if for?
(OP)
I have a Tektronix 2235A Oscilloscope that came with P6109 150KHz probes.
Tektronix probes have that ground pin at the collar of the BNC.
My generic China made X1/X10 probes that I had before don't have the ground pin.
There is no automatic switching from X1/X10 range, the selector dial for Vert
Deviation has both scales, you just look at the right scale on the knobs dial scale.
It seems in X10 the China probe reads less than the Tektronix?
Any detailed info would be great.
Tektronix probes have that ground pin at the collar of the BNC.
My generic China made X1/X10 probes that I had before don't have the ground pin.
There is no automatic switching from X1/X10 range, the selector dial for Vert
Deviation has both scales, you just look at the right scale on the knobs dial scale.
It seems in X10 the China probe reads less than the Tektronix?
Any detailed info would be great.





RE: Tektronix Oscilloscope Probe Readout Pin? What is if for?
TTFN
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RE: Tektronix Oscilloscope Probe Readout Pin? What is if for?
different X10 results from the cheap China made X10 probe. Either that probe is off or that readout pin does something else. I was thinking it's a resistor to ground and does some compensation? The China probe must be off? Other wise I wounder if they did it just to make their probes proprietary?
RE: Tektronix Oscilloscope Probe Readout Pin? What is if for?
It's most likely that the cheap probes are just cheap...
TTFN
FAQ731-376: Eng-Tips.com Forum Policies
RE: Tektronix Oscilloscope Probe Readout Pin? What is if for?
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If we learn from our mistakes I'm getting a great education!
RE: Tektronix Oscilloscope Probe Readout Pin? What is if for?
Generic probes are reading different in X10. I did some
more A B comparison and the Tek Probe is fine and the
China made probe is reading low in X10. It has nothing
to do with the read pin (I think). The Generic China
probe is OK in 1X.
RE: Tektronix Oscilloscope Probe Readout Pin? What is if for?
TTFN
FAQ731-376: Eng-Tips.com Forum Policies
RE: Tektronix Oscilloscope Probe Readout Pin? What is if for?
RE: Tektronix Oscilloscope Probe Readout Pin? What is if for?
RE: Tektronix Oscilloscope Probe Readout Pin? What is if for?
Keith Cress
kcress - http://www.flaminsystems.com
RE: Tektronix Oscilloscope Probe Readout Pin? What is if for?
Gunnar Englund
www.gke.org
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100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...
RE: Tektronix Oscilloscope Probe Readout Pin? What is if for?
About calibration: You do not need to calibrate x1. The reason is that since there is no series resistor, there is no parallel capacitor, and hence no need (or possibility) to calibrate it. So, calibrating x10 is fine. Nothing more needs to be done."
From some movie, "I KNOW THAT NOW!" Ha ha. Yep that makes sense. It was just a switch error; I should have calibrated it in 10X, my mistake. Thanks for pointing out 1X is straight through nothing else. Cheers!