anyone try el34 in there model t?

[cosmic erosion]

hi there,

i got jjkt88's in my '74 model t, tried 6550's. anyone try el34's in their head? are they compatable? what type of tone did it give you compared to the other tubes? thanks.

[Andy's Junky Music]

I've got them in my '73 model t...they sound pretty good but I liked 6550's better.  I need some cash before I can get another set though.  The el34's are worht the try though. 

[cosmic erosion]

cool. were they smoother on breakup?

[EdBass]

I've got them in my '73 model t...they sound pretty good but I liked 6550's better.  I need some cash before I can get another set though.  The el34's are worht the try though. 

So just to clarify, you just plugged EL34's into an circuit designed for 6550/KT88's? Any other modifications?

[Andy's Junky Music]

no the amp was rebiased to run the el34's.  ive been seeing lots of model t's running them lately

[JoeArthur]

I think what EdBass is trying to get at is that the EL34 has it's suppressor grid on a separate pin, where the 6550 doesn't.  The 6550 (like a 6L6, 6V6, etc) has the suppressor connection internal to the tube to the cathode.

Normally a 6550 amp has to have pin 1 (suppressor) connected to pin 8 (cathode) on the socket for proper pentode operation of an EL34 - not just have the bias reset.

[cosmic erosion]

cool thanks guys. maybe i'll try them out.

[EdBass]

I'm sure it sounds...different.
 
 

[cosmic erosion]

bump from the dead? anyone else yet? thanks.