superdau: How does the trimmeable bypass cap work when it's near the socket, but the
1x/10x selector switch is in the probe? How can they be in parallel in the
way you've drawn them?
Samuel Atkins: I need a 100X probe for dso520 oscilloscope. Can i use any 100X probe?
Sean Craig: I've always wondered why the leading edge of the square wave changes but
not the trailing edge, it stay nice and sharp?
Tony T.: Great lesson on a key subject! Thank You!
Mustafa Tahsin Güler: Does stray capacitance come from the interaction between core wire and
grounded wire in the coaxial cable ? I made 2 probe cable, one from a rg58
and the other from a rg174, rg174 which is thiner has higher noise, what
may be the reason ? But I think, they are noy because of capacitive loading
if its effect is as shown here at the end of the video, here I am talking
about parasitic noise distorting the signal.
Todd Johnson: Thanks! Great explanation of the compensation adjustment.
GulfSouthGene: Using Oscilloscopes most of my engineering career, been to Tektronix
schools, etc. but your explanations, easy to understand and intuitive. Good
Job 73's KC5WS
Chris Greene: So, I was trying to measure a weak signal (about 2 mV [Max resolution on my
scope is about .2 mV)) in a fairly simple circuit. Couldn't figure out why
I wasn't seeing anything. Then I realized my probe was on 10x.
Basic 1X and 10X Oscilloscope Probe tutorial
Clifton Jamison: Great tutorial,I learned a lot ,thanks.My uncle's call letters were
W2UEN,and he was in Plattsburgh,N.Y.He would repair everyone's TV's in the
area,when they first came out.He had one of the first TV's that were
available.He was a character.
Jolita J: Thank you very much for this video. Helped unbelievably.
w2aew: @Afrotechmods Thank you! I'm glad you liked it!
Miguel Rodriguez: Thanks. The main cables are 2 meters long, for normal use I think it is
excesive, does tektronix make pasive probes with shorter main cables?
Chris Hinton: you know what -- it's the simple things that i missed in school -- i've
never thought about calibrating an o'scope (calibrating a VNA, yes --- but
an o'scope never crossed my mind). anyways, thanks for the video! very
w2aew: @realy1985 Thank you very much!!
bluebelt4life: what should the value of the trimmer cap be? For example with 20pF scope
w2aew: In an ideal world, for a 10X probe, the compensation capacitance would be
~2pF. In reality, it will be different because you have to account for the
cable's capacitance and other parasitics.
zloben9000: i found this site dealextreme com they have a 60MHz Oscilloscope Probe with
X1/X10 Switch (Max 600V) for 6 dollars with free shipping .. i just ordered
kc8rwr: I knew my probes had an adjustment but I left it alone because I didn't
know how/when to adjust them. Now when I get home I will be checking mine.
Max Manner: Brilliant teacher!
foundede: Is there an "awkward" stage between when the signal sees 10X attenuation by
the 10 megaohms of pure resistance and when the signal frequency increases
high enough to see the 10X attenuation by the input and compensation
HammerToneAmps: Excellent basic tutorial .. very helpful. Thanks
w2aew: There are 10x, 20x, 100x, etc. probes designed for a 50 ohm impedance
input, but they are hard to come by. However, I find it odd that your scope
would have ONLY a 50 ohm input, especially for a scope that has only 100MHz
BW. I would expect that it can be switched to have a 1Mohm input as well,
in which case you can use ordinary 10x passive probes.
w2aew: @sdscotto If I had access to some active probes and current probes, I
would. There are some videos and webinars online. Go to tek.com / power
(without the spaces) then select Library and Videos & Webinars. I'd like to
do one of my amateur videos on this, but I just don't have the equipment.
Erwin Ried: Hi! My scope says 400V max input, can I connect the probes to Mains? 220V
using 10X? or I will blow the probes?
321reh: Keep churning those Videos Out,,,I love to learn!!
BombshellBill: great video man! you really know you're stuff!
65Superhawk: Yep. It was there. I didn't see it at first. Most probes I saw on Youtube
had a differently colored "box" near the BNC connector. This one was not a
box, but merely a part of the molded black plastic sleeve that was bigger
and had a screw inset within it. Thanks!
w2aew: @HCI344 I'm glad you found it useful!
321reh: Thanks for all the Great videos you put out!!! You should do a Video on
Consumer Electronics Repair. MR.OHM enjoys ALL your Videos,,,Thanks!!
Afrotechmods: Most comprehensive video on probes I have ever seen. Hats off to you sir!
w2aew: @ElectronixCore Thank you very much! Please let me know if there are other
similar topics that you'd like to see future videos on!
nikola_tesla: @w2aew Will do! Thanks so much!
Nemanja Todorovic: This is what I thought. Superb video! Covered is everything you need for a
beginner. Thank you!!!
w2aew: @321reh I'm glad you're enjoying the videos. Next time I have an
interesting repair job, I'll work on a video for it.
RyanAtTek: Great video describing the fundamentals of Probing. I really enjoyed it.
zin360: really helpful tutorial, thanks a lot and keep it up :D
w2aew: You'll have to check the maximum voltage rating for the probes to be sure.
The 10x probe will reduce the voltage that the scope "sees" by a factor of
10, so it will only see 22Vrms. However, you have to make sure that the
probe is rated for the 220Vrms.
crnazvijezda: Thanks for this video! Really help to learn some things about probes.
Johnny Whittenberg: Great demonstration! I actually discovered this video because I have a Tek
P6133. It came with a bunch of accessories such as rings and some other
items. I read the manual for the probe and I still can't make heads or
tails of what all the other parts are for. Will be subscribing to your
w2aew: Well, with the cheap probes, you probably get what you pay for. With
higher-end brands like Tek, HP, Agilent, etc., the probes will certainly
meet their rated specification (as long as the scope supports that BW). Of
course, you have to properly deal with ground lead length (see my video).
Tek certainly has passive probes rated to 500MHz. In fact, Tek now has 1GHz
passive probes, but they only work with their DPO/MSO/MDO4000 series scopes.
smashedg: Nice! I'm just now getting back into using a scope after about 15 years...
electroletic: @w2aew, when you measure a 5 volt drop across with your oscilliscope, and
you decide to change your volts per division, does that change your voltage
drop across that resistor ? I obzerved when manipulating volts per
division, it raises the volts peak or lower's it, is that changing voltage,
how could you still count 5 volts per division once you raise your wave now
the wave is jumping to about a few divisions higher, so how could you still
measure 5 volts.
BChris34: 6:09, At high frequency, ratio of Cin+Ccoax to Ccomp should be X9. Great
w2aew: @Lightson85 I'm glad you found it useful!
w2aew: It depends on the probe, and the scope of course. You'll see a bandwidth
rating on the probe indicating the maximum frequency. Common passive probes
are 20MHz, 100MHz, 200MHz, etc. there are some that are available with
Yazan Rawashdeh: Teaching is not just about how much knowledge you have it is how good you
are in approaching your point in other words it is an ART of approaching to
get the information clear AND YOU GOT THAT amazing video thank you so much
brockbilt: Great video, Thanks for the info
DigitalOsmosis: Excellent video, love the flip-book setup!
w2aew: @rome877 Thanks! I'm glad you enjoyed it!
ElectronixCore: Like many before me have already said, this is one awesome video. I already
knew this all but the way you explain it is high quality teaching style.
Always love watching/listening to your videos. If only my professors at
university were even a fraction as talented as you are in bringing the
material across. Exceptional stuff once again!!
Blog Dir: Building the website was not the hard part, but monetizing it was a whole new story. Thanks for the guidance about adsense. I am finally getting some money for my business directory. This is good for both business owners and customers. Keep building quality site and everyone wins.