EM9
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The EM9 was Carl Zeiss first Electromagnetic focusing TEM. It was later Succeeded by the EM10 series
Variants
EM9
This is the first generation of EM9, unlike later versions, it did not feature a condensor lens, instead opting for the use of direct illumination by the electron gun.
EM9A
This the second generation of the EM9, now featuring a 1 stage magnetic condensor lens.
EM9S2
It is not known if a EM9S existed, but the EM9S2 is presumed to be the successor to the EM9A
Documentation
