s.e.x tube equevilent question

[balancedtriode]

hi im thinking of building a sex amp for my dad`s klipsch`s (he is an audiophile from way back) is a 6SN7 The same as a 6DN7 be cause i have some great nos coin base 6SN7`s i could use
any info would be apiciated thanks
-c

 

[jrebman]

Hi,

Sorry, but the 6dn7 is the only tube that will work in the s.e.x. amp (though with some modifications you can use the 6em7 and 6ea7.)  The 6dn7 is a dual dissimilar triode meaning that it has a small signal triode on one side and a power triode on the other.  The 6sn7 is a dual triode for small signals and is identical on both sides and will not work in the s.e.x. d

Hope this helps,

Jim
esign.

 

[Dyna Saur]

6FJ7 has identical operating characteristics to 6DN7, but it is in a duodecar "compactron" package.  
Might be a  good one to use  in a highly  modified unit, or a "clone" design.  Not worth changing a perfectly good working unit, however,  as there will be no real improvement.

/ed B in NC