06-05-2006, 08:28 AM
It is a misprint. A 7B7 is an IF remote cutoff pentode and a 7B5 is an audio output tube equivalent to an octal 6K6. 7B5E????????
Kind regards,
Terry
http://home.comcast.net/~suptjud/
"Life is simpler when you plow around the stump."