As always I’m having some dificulty focussing. I intend to clean my symbol up a bit (Add descriptions) and also add the other version with the dot on the housing.
I also want to check with the KLC and update my symbol.
Reading the KLC is on my todo list anyway.
If I can keep focus I will post an updated new version within a week.
If I have have not managed to do such a (simple) thing in a week, then it probably won’t happen, but you at least still have the symbol I posted earlier.
Kicad 5.1.0 is almost ready, when that happens they will get the symbols in the github and tag as 5.1.0 also. It would be great if we update the Geiger symbol before that
I’m also trying to understand KLC, i’m new to it. If I understood correctly, we will have 3 symbols? The version that is already there and your 2 new ones? How should they be named?
I’ve named my 2 symbols “Geiger-Muller” and Geiger-Muller_generic".
The KLC does not permit spaces in names, and “Geiger-Muller_alternative” seems like a proper name to me for the other symbol
I want to make symbols like you when I grow up! They look very nice!
For the footprint, we should leave it blank. There are so many different Geiger tubes and some of them have a casing with the wires soldered directly to the terminals.
About the pin names, what about cathode and anode? I always confuse both of them, I prefer plus and minus …
I was not sure if Anode / Cathode were the right terms here, but Wikipedia uses them in the description of a G-M tube:
The chamber contains two electrodes, between which there is a potential difference of several hundred volts. The walls of the tube are either metal or have their inside surface coated with a conducting material or a spiral wire to form the cathode, while the anode is a wire mounted axially in the centre of the chamber.
About remembering Anode / Cathode. In my langurage Kathode is often written with a K.
If you put the A and K together like in the picture, it resembles a diode.
I’ve looked at a buch of diodes, and the firt I looked at (pspice:DIODE) the pins were named backward??? Afraid to loose my sanity so I checked 5 or 6 other diodes and those all have pin name “A” for the side with the triangle, and K for the side with the stripe.
K and A folows normal convention and those seem to be better names.
You can easily change them in the library editor by hovering over a pin and pressing "e"dit.
To be honest i thought the library name would already be enough of a hint that these symbols are specialized for simulation. Now you tell me not even a warning in the description is enough?
At that moment I was only looking for pin names on Diodes.
I had not read the description:
“Pin order incompatible with official kicad footprints”
I had not even noticed it was a diode from the Spice library untill I looked up the library name to add it to the post. Tnx for the confimation the Spice symbol is “weird”, so I can relax a bit and don’t have to loose more of my sanity.
The more relevant part of my previous post is that Anode and Cathode names do also apply to G-M tubes according to Wikipedia.
This is one of the reasons why we normally do not discuss such things over here at the forum.
That is what github issues are there for. (An issue at github will be mainly handled by the library team. Whereas here you did only get very limited input from us as most of us are not here. And i have a policy of not discussing library maintainance stuff over here. Main reason is that it does not reach the full lib team and it will be forgotten.)
@heitor
I’m not sure wheter E1 & E2 for the pins are OK, or K&A would be better, but I’m finished with the Geiger symbol. Maybe the Kicad Library team knows.
I also agree with Rene’s last post. This is quite inefficient.
In a lot of ways It would be better if I had launchpad & github accounts and learned how to work with Git. These are on some of my ToDo lists, but I’m having some difficulty in selecting priorities. Often I can focus just long enough on a single subject to get a post finished.
You are totally right, Rene. When I started this thread my intention was not to discuss making new symbols, but it become that. I created an issue in GitHub to discuss it.
@paulvdh if you have an account in GitHub, I can help you in the process of opening pull requests to add your symbols there so you get the proper credits there. Otherwise I can mention you in the commit message.
The problem is between my ears. I will need lots of time / practice to get acquainted to git itself before I want to mingle on sites like github. I also don’t like github being taken over by microsoft. I do not have a high opinion of that company.
Sort of similar with launchpad. I will not make an account there without reading / understanding the pages of lawyer bullshit, and I’m not in the mood to put effort in reading / understanding the same lawyer bullshit.
Because of this, I have for example also not made a proper bug report out of: https://forum.kicad.info/t/kicad-website-documentation-toc-obfuscation/14964
Yes, you’ll need to learn git if you want to file a pull request. But if you just want to file bugs, or comment on pull requests other people have made, you don’t need to know git. So it still could be useful to create an account on GitHub before you know git.