Via google translate:
"My name is Daniel Digiano and I am from Argentina, my hobby is electronics, 3D printing, etc. and I built a Ribbon Microphone, and I also wound the transformer with a toroid, that is why I joined the group, since I am looking for circuits to build a preamplifier for ribbon microphones, thank you again for accepting me and the group is incredible with a lot of information and I will upload photographs soon."
Welcome Daniel!
I don't know Spanish so I used google translate to understand your message. I hope this does not offend you. And I printed the translation here so anyone else who wants to know you better can understand.
I think it's very exciting that you built your own ribbon microphone. I have done that, but only from a kit so I admire you all the more. I am sure you will make many friends here and wish you the best.