[quote author="analag"][quote author="gyraf"]..transformerless+tube does not make sense..
Jakob E.[/quote]
That's not an objective statement at all, it would have been better (...) [/quote]
What I mean is:
With tubes, if you want balanced inputs at relatively good s/n ratio and decent CMRR, it makes no real sense - other than academically - to skip the input transformer.
On outputs the same comes true; If you want balanced output, and decent-low output impedance - combined with decent CMRR, the output transformer is not the thing you'll want to skip - unless you're into the theoretical game of "what could be done" - or you're skipping on specs in order to save parts costs.
Jakob E.
Jakob E.[/quote]
That's not an objective statement at all, it would have been better (...) [/quote]
What I mean is:
With tubes, if you want balanced inputs at relatively good s/n ratio and decent CMRR, it makes no real sense - other than academically - to skip the input transformer.
On outputs the same comes true; If you want balanced output, and decent-low output impedance - combined with decent CMRR, the output transformer is not the thing you'll want to skip - unless you're into the theoretical game of "what could be done" - or you're skipping on specs in order to save parts costs.
Jakob E.