@bitseeker re the 181
There are a couple of Amphenol connectors I believe fit, I can confirm the first one does (I have it) and it fits nicely.
One is readily available, Mouser PN 654-97-3106A-16-11P Amphenol PN 97-3106A-16-11P about USD$20
The other takes a while - I think it is supposedly better from the temp-coeff point of view but is more expensive!
About USD$40 each ! Mouser PN. 654-97-3107A-16-11P. Amphenol PN 97-3107A-16-11P
Expensive as they are they are cheaper than Triax connectors. **********!!!!!!!
Yeah, tell me about it. Thanks for the references. Now, I'll be less apprehensive the next time a 181 comes by. (Oh, no!
![Laughing :-DD](https://www.eevblog.com/forum/Smileys/default/smiley_laughing.gif)
)
I plugged it in and it proceeded to blow up 2 of its 4 its Tantalums - I was describing this to my wife and she very astutely nicknamed them "Tantrum" capacitors.
That is an excellent name for them! Bravo Mrs. VK5RC.
![Clapping :clap:](https://www.eevblog.com/forum/Smileys/default/clap.gif)
I shall have to adopt that.
Replaced them and it works OK I get roughly correct reading on both its ranges and they appear stable - I can't test it further at this stage.
I have to make a set up to generate a voltage I can then measure down below 1mV and also a "Short" and some test leads, I found some nice pure copper alligator clips and one of Pomona mini-hooks are copper as well.
Inside it looks like good / real Keithley gear ![ThumbsUp :-+](https://www.eevblog.com/forum/Smileys/default/icon_smile_thumbsup.gif)
Regards Rob
Cool. Good find.
I scored a Pomona 5342 cable (3-slot triax to 3 alligator clips) for $40. It currently won't fit any of my Keithley gear, but at that price, I couldn't leave it alone. I'm still hoping I can find either the 2-slot Pomona 4725 and/or a 2-slot to 3-lug adapter (to use with the 5342 cable) at a reasonable (to me) price.
I saw a couple people had posted that they converted the panel-mounted triax connector on their Keithley gear to 3-lug, but it seemed to be a bit of an operation, both electrically and mechanically. So, I've been holding off on going down that path (plus I like to keep my gear as original as possible). I also am not inclined to file off one of the lugs on the 2-lug connector as some have done to make it "universal."
Patience may eventually pay off.