The Secret Society of Lathe Trolls

Thanks for the info—it is indeed from the 40s (1942 I believe). I managed to find a copy of the "Photofact Folder" for the 6B10, 6B20, 6B30 & 6B32 on eBay (can scan it & post if anyone else is interested?) which has a schematic & parts list, including all capacitor values, so I'll get on Digikey or ...

Hi all, I have been lurking on here for a while, and finally got my hands on a Recordio that seems to be in good physical condition, but it isn't making any sound (although the platter spins smoothly). It may be as simple as replacing a tube or something, but I was wondering if anyone has any pointe...