Turning up the filament on the EM420 Transmission Electron Microscope

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I have the voltage set to only 40kV, and the HT light turns on which is good. Next, I slowly turn up the filament, and you can see the beam slowly appear. Unfortunately the scope is really out of alignment and also has a few coils giving bad readouts.


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Turning up the filament on the EM420 Transmission Electron Microsco... | Ecency