[Kw6]

The difference between single ended Ultralinear and single ended Triode mode using El34 tubes?

[JohnR]

Single-ended ultralinear will have the screen connected to a tap on the output transformer. Here's an example:



http://diyaudioprojects.com/Technical/6V6-SE-UL-Bias-Optimization/

Single-ended triode-connected will have the screen connected to the plate (via a resistor). Like this:



http://diyaudioprojects.com/Tubes/6L6-5881-SE-Tube-Amp/


(Also, please try to use a meaningful title for your posts )

[Kw6]

Ok thanks John! Then what is SE Triode?

[FullRangeMan]

Ok thanks John! Then what is SE Triode?

I failed tô understand your question but SET have the anode connected tô the output and UL have the anode and the screen connected tô the output, hence the greater power than SET.

[JohnR]

Ok thanks John! Then what is SE Triode?

When the output tube is a triode eg



http://diyaudioprojects.com/Tubes/6CY7-SET-Amplifier/

[Kw6]

Thanks for all your responses 🙂

[Mark Korda]

Hi, great question and great answer. Kw6  and John,thanks. You finally made that easy to understand with those diagrams....Mark Korda