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What leads and probes you use and where to get them.

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PekkaNF:
I have a mötley collection of various 4 mm plug test leads and then some scope probes.

Much of the economy crocodile leads and cheap versions of IC clips and wire probes are crap.

Hirschmann kleps seems to work and has endured. I'm going to order a set or two.

This sort of stuff would be traditional low voltage "kit":
https://www.conrad.de/de/messleitungs-set-lamellenstecker-4-mm-lamellenstecker-4-mm-100-m-schwarz-rot-sks-hirschmann-pms-4-co-120030.html?sc.ref=Category%20Overview

And it offers great flexibility, but:
* I have always been a big fan of 4 mm system, can use all leads together
* Does 2 mm system offers anything else, but smaller current rating and smaller size?

I then realized that I basically have no good probe between standard low frequency multi meter leads and 10Mhz or above oscilloscope probes.

I will construct few specialized measurement probes, that upper frequency will be in region of 200 KHz (some very low volt and some 300-500V) region. Both will be very different from start on.

For low volts there is probably a lot of choices, like:
https://www.conrad.de/de/abgreifklemme-steckanschluss-064-mm-cat-i-weiss-sks-hirschmann-kleps-064-pch-129029.html

But are there any of that type with flying leads or connector that I can easily solder other end of the PCB. There are some mixed quality BNC/test clips, but BNC is a bit bulky and I'm having hard time finding soldered terminals + they are really more suited for coaxial cable.

I like the JST and other that type connectors, they are slimline etc. and outside is insulated. Only problem is that the crimpping plier is pretty expensive.

Suggestions for normal less than 30 VAC low volt measurements and then 230-400 VAC high voltage measurements. They will be completely different probes though.

Pekka

John Swift:
Hi Pekka

I think its inevitable we end up with large collection of test leads
the kits you have linked to are a good start , I have started off with similar ready made  test leads 
over time I have added various shrouded test leads and DIY leads with 4mm shutter plugs

  John

awemawson:
Good quality oscilloscope leads are good from DC to several hundreds of Mhz so I'm surprised you are giving a 10 Mhz lower limit on your probes.

Most 'scopes have input switching between DC coupled and AC coupled with the same probe doing both. A decent probe will have a compensation capacitor that is tweakable to get decent rising edges, and a x1 / x10 switch on it

PekkaNF:
Scope probes are no problem, they seem to multiply.

Much of commercial stuff is very expensive, because it is over specsed for high rise times, high voltages, low parasitic capacitance and CMRR and all that.

First order of matters: low voltage differentials and such.
I like this type of probes:
https://www.buerklin.com/en/catalog/Test-equipment-sets-type-Hirschmann-T-M-PMS-0-64-F706100.html

Wonder how long the test leads can be left and at what cost in terms of noise and frequency?

I don't like the 4 mm plug at the end of the test lead. Small connector to PCB would be nice. Suggestions?

Good suggestions on BNC connectors that can be soldered on PCB?

High voltage is a different battle. I like the shrouded connectors John brought up. Have some that sort of stuff for Fluke.

Pekka

PekkaNF:
Bit more search and head scratching...twisted pair gets pretty far on frequency domain, bit more search and I found this one:
http://www.bitscope.com/product/DP01/

Now this is a low cost possibility: Reel of CAT5 cable, little soldering and crimpping and custom probe is ready to go.

+ cheap
+ available and economical connectors are available

- cat cable is a bit stiff and probably not too kind on small IC probes
- cat cable pair does not bend well repeatedly and it is stiff
- cat cable pair will put strain on connector, should find alernative 2 pin connector

Am I on the right track or are there better alternative to DC...way under 1MHz signals shot probe leads?

Any suggestions CAT cable conector that is not ethernet type connector. 2,5 mm or 0,1" spacing is prefered, so is latching body, something like pin strip PCB mount type. I like crimpping connectors, but on this size crimpping pliers are really expensiven. I end up buying connectors as a pigtail, but that is not very common with twisted pair.

Pekka

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