Quote:
Originally Posted by Pio1980
A friend had a module era Zenith color port in storage, asked me to get it working again for nostalgia. Cleaned the troublesome module connectors and fired it up. Heard sparking as if in a bottle, the CRT had lost vacuum in the meantime. Dunno how common that is.
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If the safety caps on these fail HV can climb over 100KV and heat the CRT till it cracks. Repair techs of the 70s modular era will tell you that it wasn't uncommon for it to saw off the neck and the yoke to drop off when that happened and the owner wasn't in the room to stop it quick enough...