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How to remove electron gun from an old tv? Answered

There is currently two old tube tv's on my street and i have already scavenged components like the flyback and 400v cap, but i was wondering if there was any way i could remove the electron gun for experimentation in vacuums. If anyone could explain it to me or post a link to vid, instructable or webpage it would be very helpful.

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user
steveastrouk (author)2011-08-22

You COULD do it, if you cut the neck of the tube off with diamond saw.

FIRST you have to break the tube vacuum - wear gloves and eye protection, and break the nipple at the end of the tube, where the gun connections are.

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user

thanks for the response, i was hoping there may be some screw or latch, but i guess its pretty messy. and i am not sure if i wanna risk injury smashing it open, i have heard of a myth that the vacuum will cause it to implode and then glass shards fly everywhere.

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user

Its not a myth, but the procedure I outlined is perfectly safe. Use a small pair of pliers to nip the vac-down tube and you'll here air hiss in for a few seconds - then the tube is pretty safe.

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user

when you say nip the vac-down tube do you mean crack open the tube or is there some sort of vacuum release valve.

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user

LOOK at the tube, right on the back, where the wires leave there is a tiny spike - that's where the tube was vacced. Nip that.

Steve

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user

ok, thanks, u help me a lot. i appreciate it.

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