Danger? 1 brand of needlecord in another machine?

I was told by someone who knows a lot about electronics (but isn’t a professional) that it could be dangerous to use one brand of needlecord or stylet/probeholder/stylus in another brand of machine. As in, it could cause injury to the client, injury to the electrologist, or cause the machine to burst into flames. Is this true? He said it’s because the needlecord may have been manufactured to only be able to transport a specific # of watts or voltage or amperage, and the machine (if a different manufacturer), outputs a different # of watts or voltage or amperage. Really? By the way, I’m not talking about connectors. Assume that ALL of the needlecords use a BNC connector (not a banana plug, or TA3F, or RCA or any of the others). If what my friend says is true, then how is it possible that the Daisy by Uniprobe purportedly is supposed to work on any machine? Does the Daisy cord have very thick wires that are capable of carrying any amount of electricity? https://www.theelectricspa.com/store/p6/uniprobe-cord-and-holder.html It says “Works with all units. For use with Uni-Probe.” Do they mean that it works with all Uniprobe machines, or that it would work with a Fisher, with a Sorisa, with a Clareblend, etc.?

And I know that I should only use switched stylets (styluses that have a finger button) with machines that are capable, such as the Sterex and the Carlton, but not have the footpedal plugged in at the same time. Is it dangerous if the footpedal was plugged in at the same time as the switched stylus?

I was also told that a switched stylus shouldn’t be plugged into a machine that ONLY can use footpedals. For example, don’t plug a switched Uniprobe stylus into a Hinkel UC3+ machine. But would it just not work, or would it cause the Hinkel to be permanently damaged? Or what?

Can I plug a Probex switched probeholder into a Sterex machine, as long as I don’t have the footpedal plugged in?

Would I be able to use my Probex switched needleolder ONLY with a Probex machine, and not a Sterex, or a Carlton machine? https://i.ebayimg.com/00/s/NzY4WDEwMjQ=/z/bIUAAOSwojRYTVyQ/$_86.JPG

Here are the probeholders I have (all BNC connector, and all F-shank I think, except for the Silhouet-Tone which is L-shank?):

Probex switched
Sterex switched
Hinkel air cord
Uniprobe switched
Uniprobe unswitched
Ballet Prima Ejector
Silhouet-Tone (I’m not sure what the name of this one is, but it’s not the VMC one. Those ones look like they have TA3F connectors or something similar. Mine is a BNC and is blue plastic).

The two machines I have are Sterex SX-B and Hinkel UC3+. So will all of them work, as long as I don’t stick a switched cord into my Hinkel machine? Please give details. I’m very worried about safety.

I used the Daisy switched in my Sterex and it seemed to work fine in skin. I also tried the Ballet Prima Ejector on some wadded up wet toilet paper, and that seemed to work as well; haven’t tried it on skin yet though.

I mean I tried the Ballet Prima Ejector in my Hinkel UC3+. Sorry if some people assumed I had it plugged into my Sterex SX-B.

I only know a couple issues about needle cords.

First, the length is somewhat important and the cord should be the same length as the original cord that was supplied with the machine in question. A much longer cord might cause a drop in the HF, i.e., more resistance (and shorter the opposite effect). No DC problem if you have a meter … and you do!

There use to be issues with “insulated and non-insulated” cords. Putting an insulated cord on a unit designed for a non-insulated cord could “up” the HF (or not … HF is “tricky” and best left to electrical engineers for comment.) This is not an issue any more because now-a-days all needle cords are insulated. (Again, no issue with DC.)

I somewhat think that the other “stuff” you were told was “bobblygoop.” But I like the “bursting into flames” thing … gotta see THAT!


Your questions required answers from specialist in the antennas and RF power transmission. Nobody here has that knowledge or time to make that research for you. You can go to wikipedia and search for antenas, Rf power transmission, RLC circuit, resonant frequency etc.
Parameters as Length,Resistance, Capacitance and Inductance of the probe holder are used to be calculated the RF frequency and the output power.
On the practical side you probably can use only the holders with the same measured parameters (or very close) to the original one.

Hope this help.


Simple explanation of antenna: