So, for those looking for a Sylvania 6SN7GT “Bad Boy”.
One important thing to note, this tube has 3 holes in the plate, and only 3 holes. This was a special tube only made for a few years, that was discovered by a tube roller, who noticed how unique and special they sounded compared to other Sylvania 6SN7GT tubes, so he named them “Bad Boys”, and the name stuck.
Here are the descriptors.
The real “Bad Boy”, is on the left below.
Bad Boys
