开云体育

Thanks. I think this means the resistance of the series (divider) resistor in the tip must be about 2 Meg ohm. I still think the best test of the probe will be to test the integrity of the waveform it

Hi I'm doing as it says in the manual. I don't have the tensions. And every time there is a pulse it resets the voltages. Both + and -. The processor LEDs always blink.

I will tell you the tests I did. I turned off all the accessories. I did a good cleaning. I only left the motherboard with the fan controller. I replaced all the 100k 1206 and 150k 1206 resistors.

Thanks for that. I'm all in favour of simple tests! I assume you mean the button marked 'REF' as there's nothing else orange on that probe. With the button out I'm seeing 287k and button-in 388R. So

Perhaps something on the order of a fan/filter used for hobby woodburning or gourd burning would work for you.? You'd likely want a 3D printed adaptor to go to a hose.? One from a CPAP unit might

DING DING DING DING!!! You just explained something I've been seeing, and never even thought about. Now I need to think about how to get just enough air movement to keep the flux fumes away from the

I concur and having worked in high vacuum systems (optical disc manufacturing) I knew the vapor pressure of lead is quite low, as both it and indum have historically been used for sealing washers in

I think this is probably the most important point made in this discussion so far. Here's why: In a previous life, I worked in an industry where high vacuum was a critical part of the process. In our

I thought of another couple of simple 'signature' tests you can do with the 10073C probe if you have access to an ohmmeter. Measure the resistance across the BNC connector at the scope end of the

For dirt cheap, a 5" muffin fan from any cast-off PC, the base part of a dryer vent wall piece and a length of dryer hose and a 12V wall wart, you're done.

I am locking this topic as I inadequately posted it to the wrong group.

I think only a small part of the input capacitance is going to be fairly consistent with frequency. This will be the shunt capacitance to the ground ring right at the tip where the tip will be a bit

One wonders how the extraction (death) of military people, WWI 20,000,000 approx, approx 60,000,000 WWII who had the "best" health and genes has affected the prevalence of various diseases like

Getting OT but I will note that things like cancer are probability based and include genetic disposition.? Raising the risk of cancer from 0.001 per thousand to 0.01 per thousand still means you are

OK sorry for any confusion about where 60R and 7pF comes from. If you are still unsure about the Rp of the 10073C up at UHF, I tried a quick experiment using a VNA and a simulator. I measured a

Wow, those old guys must have been much tougher than today's youth and young adults! I loved your stories, and will withhold many similar ones of my own. Other than having made a much better choice of

When I was a 7 year old kid, up until I was 18, I fished frequently during the summer.? I always used lead sinkers.? I also always crimped them on the fishing line with my teeth.? I also remember

I have one with the same problem. I didn't disassemble it. I saw comments that could be the source. Do I check the power source directly?

I againmissed the plot you provided. A lot fo confusion has arisen due to your use of 6pF and 60R without any inital reference.hey were determined. I still suggest that the BNC T method is a good

Jmr: "This stuff isn't difficult or technically challenging." <boggle> I have to admit I'm finding it **extremely** challenging trying to follow all this!! I thought I had a reasonable grasp of