[Elecraft] ATU efficiency and the Elecraft T1

[Stuart Rohre]

The L network tuner has one less lossy reactive component, (coil or cap). 
It also has an unambiguous tune up for optimum power transfer.  Ie, only one 
setting of the variable components gives the lowest loss transfer of power. 
In a Tee tuner, there are three adjustable parts, and two settings for each 
frequency in many cases of matching.

The L net can be used with a ferrite bead cable choke, to feed parallel 
lines, if you float the tuner case above ground.  (If the internal 
components have one side grounded to case).

Stuart
K5KVH