Dave noted: >Nope. The 50C5 and 35W4 were 9 Pin Minnatures. The 50L6 and the rectifier were octal. (8-Pin keyed sockets) As well as the 12SK7, 12SQ7 and the 12SA7. ------------- Yes, I stand corrected. Sit corrected. Whatever. My memory sometimes doesn't work as well as it used to. Sorry. Glen Kippel KHCS Palm Desert, CA