What is this tube I found, and can I use it in my Guitar amp? It is an RCA and it says 6DJ8 on it.?

Question

I was looking through some old electronic components at an old building I was in, and I found an interesting assortment of electron tubes. I saw two that look a lot like 12AX7's so I took them home, hoping that I just found two rare tubes. The say 6DJ8 on them in a white block font, have 9 pins, and are made by RCA.

what do I have? thanks!

Answer 1

I believe they are twin triode tubes. They are pretty old, they usually had a date stamp somewhere on them. It usually would be 2 numbers indication the year.

Answer 2

It's a twin triode.  The pin out is at the first link below.  

For full specs, there's a 5 page data sheet at the second link.  Scroll down to 6DJ8 and click on each page in turn.