12 MV 100 years ago

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Rikard Titus by way of Terry Fritz <teslalist-at-qwest-dot-net>" <rikard_titus-at-hotmail-dot-com>

Some sources say that Tesla reached voltages like 12 MV using  his 
magnifier in Colorado Springs.
In his diary (Colorado Springs Notes) he only refers to potentials like 3-4 
MV on two occasions.
Was his giant magnifier supposed to work differently than we anticipate 
today and where does that 12 MV figure come from?
Thanx for suggestions and comments .

-Rik