kschafer2598
Member
Hi all,
I recently picked up an old converted Galaga cab that I plan on restoring, trying to get the electronics going first. It has a 19K7191 monitor with a K7000A chassis in it.
The tube is completely black, with no neck glow. The neck glows at first power up for a moment, and goes dark.
When I tried another K7000 chassis on the same tube, I got some blue arcing in the neck but nothing on the screen.
My assumption here is that the tube is indeed dead based on another thread I saw, where blue arcing and no other glow indicates a loss of vacuum.
Is there anything else worth checking?
Thanks,
Karl
I recently picked up an old converted Galaga cab that I plan on restoring, trying to get the electronics going first. It has a 19K7191 monitor with a K7000A chassis in it.
The tube is completely black, with no neck glow. The neck glows at first power up for a moment, and goes dark.
When I tried another K7000 chassis on the same tube, I got some blue arcing in the neck but nothing on the screen.
My assumption here is that the tube is indeed dead based on another thread I saw, where blue arcing and no other glow indicates a loss of vacuum.
Is there anything else worth checking?
Thanks,
Karl

