Posted by Thermionic [ 66.233.143.127 ] on August 15, 2004 at 11:24:39:
In Reply to: 47 tube posted by West Valley Joe on August 14, 2004 at 15:15:26:
Joe, the 45 is a triode, while the 47 is a pentode. Of course, the 45 has a four pin base and the 47 a five pin. Sorry, I know of no amplifier schematics using this tube.
Thermionic