[pkingco]

Hi all,

I am getting near the end of my 38-10 re-cap and repair, and noticed a charred receptacle at one pin location on the rectifier tube (5Y4G) socket. Being a rank beginner and knowing nothing about these tubes, I'm looking for information on 1) whether all 8 pins on the tube are used, and 2) if this foggy tube is an indication of a short or bad tube? I'm attaching the tube schematic and a photo of the charred pin position and corresponding pin, marked with my tool. Thanks for your help.