Thanks! And, yeah, it's not always the case, just usually. I've found unmarked caps to be most frequently found in amps from Japan and made from the 1960s to 1970s. I don't personally have any experience with many of them but I guess amps made in the old Soviet Union also were like that. The good news is that I'm no longer a poorfag. So, I seldom need to do any work on my own gear! Still, I appreciate the link. I seem to recall this video popping up in a Hackaday newsletter? I'm not positive and I smoke a lot of pot. Oh! Something I've been meaning to mention. I saw on PicInfinity that you were the design guy. I'm not terribly fond of the UX, but the UI is nice and works very well for a partially colorblind person. The contrast is excellent. I've been meaning to say thanks for a while now but, like I said, I smoke a lot of pot.