[vcf-midatlantic] Any trick to discharging ADM-3A

Ian Primus ian.primus.ccmp at gmail.com
Thu Feb 8 10:15:15 EST 2018

On Thu, Feb 8, 2018 at 9:48 AM, Neil Cherry via vcf-midatlantic
<vcf-midatlantic at lists.vintagecomputerfederation.org> wrote:

>> Can I safely disconnect the plug at the end of the CRT neck without
>> discharging?
> My opinion is NO! Ian?

It's perfectly safe to disconnect that. That's not in any way
connected to the second anode.

>> Also is the best place to clip onto the implosion bracket since the ADM
>> doesn’t really
>> have a metal chassis?
> Not know much about the bracket. I can't say. We had our ground on a
> know cold water pipe.

The cold water pipe is not part of the circuit, or even the terminal.
Try draining a car battery by connecting the positive terminal to the
cold water pipe.

You're not "grounding", the tube, you're discharging it. You have to
short out the capacitor formed by the picture tube itself. Connecting
the clip to some random other external ground might do something, you
might get a spark, but since there's no complete circuit, you haven't
fully discharged it. That's a really unsafe thing to attempt to do.


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