I was busy this afternoon to make a Mini³ as a birthday present for my niece. All was going well except for one small thing on the mechanical side. It seems to be that I can’t find appropriate screws for the face/back plates. Currently I’m using M3 screws as visible on the pic below. It looks...

As stated at the title... from all the tubes you have tried so far on your SOHA, what is your favourite (brand, type)? Feel free to share your experiences here... Personally... I have tried the following tubes, also listed by preference: RFT ECC82 (German made): cristal clear, balanced...