Electron tube with electron lens
Electron tube with electron-bombarded semiconductor device
Electron tube with improved airtight seal between faceplate and
Electron tube with improved airtight seal between faceplate and
Electron tube with polycrystalline diamond photocathode
Electron tubes using insulation material containing little alkal
Electron-multiplier and photo-multiplier having dynodes with...
Electron-multiplier and photo-multiplier having dynodes with...
Electron-multiplier and photo-multiplier having dynodes with...
Electrostatic-shutter tube with field-conforming shutter electro