Thank you, that explains it (and more)!
73,
Victor, 4X6GP
Rehovot, Israel
Formerly K2VCO
CWops no. 5
http://www.qsl.net/k2vco/
.
On 04/05/2020 20:28, demindor . wrote:
Look at this article: "THE SECRET WORLD OF OSCILLOSCOPE PROBES" by Doug Ford.
It will explain where the extra resistance is coming from and what it
is for (TLDNR - it's for suppressing ringing of 1:10 probe at high
frequencies where the cable of the probe starts looking like a
transmission line).
http://www.dfad.com.au/links/THE%20SECRET%20WORLD%20OF%20PROBES%20OCt09.pdf
On Mon, May 4, 2020 at 6:48 AM Victor Rosenthal 4X6GP
<k2vco....@gmail.com> wrote:
I like the way scope probes have a tip that hooks onto a component lead,
and a little alligator clip for the ground. So I thought I could use a
passive scope probe in the X1 position on my DVM too. I hooked one up
with a BNC-bannana adapter, but it turns out that there seems to be a
series resistance of about 250 ohms, which is inconvenient for
resistance measurements. I got the same result from several probes.
My question is, what's going on here? Schematics of probes I found all
showed that in the X1 position they were straight through.
--
73,
Victor, 4X6GP
Rehovot, Israel
Formerly K2VCO
CWops no. 5
http://www.qsl.net/k2vco/
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