The modulator is made with 2 transformers 42TM018 and 1N60 germanium diodes.
To sum up, it was an old passive modulator project that I had done in a box, then wanted to turn it into a module, but it had a very low signal, I tried to add an opamp on the output, but I ended up not putting this module in my 3rd case.
I hope i’m going to end up putting it in my next one when I do it with this full active schematic.