Michael J. Mahon  wrote:

> In the so-caled "long-tailed pair", the input signal is applied to
> one triode which functions as both a buffering inverter and as a
> cathode follower to drive the cathode of the second triode which
> is a gounded-grid non-inverting stage.  The differential outputs
> from the plates of the two triodes are used to drive the push-pull
> stage(s) following.
> 
> The fairly large-valued common cathode resistor is the "long tail",
> and the degeneration it provides makes the stage very linear.

I read this about ten minutes after coming across a post on a blog written
in Danish.  I think I understood more of the Danish.  :)

Mike
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