I ordered replacement 6L6s from Tube Doctor, but noticed when I went to switch them out the new 6L6s were smaller and had a slightly different part number. The pins are the same and slot in fine, but I’m not going to power it up until I know they are ok. I’m attaching photo for reference. Any issue with the new ones based on what you see? Part #s for each:
Your 6L6: 6L6GCMSTR
New 6L6: 6L6WGC-STR