Quote:
Originally Posted by old_coot88
Blooming with brightness turned up is due to HV failure as CRT beam current lugs down the HV supply. Have you verified visually that the 1B3 filament is glowing (as suggested previously)? If it's not glowing, it hasn't got enough emission to sustain the HV under load.
(EDIT) If it's not glowing, I would temporarily jumper that 2.7 ohm resistor and see if the filament glows.
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The X-rays you would be exposing yourself to wont be THAT dangerous!
It's not like you will grow a 3rd eye or a 2nd head or anything!
