Click to enlarge!
 The PK-4 prototype mounted in a vertical position. Click for a description of the components! |
|
 Dark space near the cathode and striations in the positive column |
 Striations reaching the anode |
 Discharge with contaminated gas with heavy striations |
 After gas refreshing: the striations are gone (or invisible?) |
 The discharge is 'burning' into the vacuum tube, instead of the cathode. Has to be avoided in next model. |
 Distortion of the (regular!) background pattern (holes) by the glass tube. Note: The right screw can be seen twice! |
|
Read some notes
from the experiments... (PDF)
|
|
