> On Jan 29, 2024, at 6:59 PM, Pete Turnbull via cctalk <[email protected]>
> wrote:
>
> On 29/01/2024 20:45, William Sudbrink via cctalk wrote:
>> Sellam Abraham wrote:
>>> I think you were fine. That's how you discharge them anyway. You
>>> were just missing the grounding wire :)
>
>> I'd rather not be the electron sink In this case. I've never taken a
>> hit off of a CRT have you?
>
> Yes, from a 26" CRT in a colour TV. It threw me across the room and
> taught me a lesson I'll not forget.
>
> BTW, if anyone has CRTs lying out of circuit, don't assume they're safe
> either. The EHT in normal use forces electrons into the glass, and when
> disconnected they very slowly migrate back to the aquadag, producing a
> substantial voltage. I remember seeing this demonstrated on an
> electronics course several decades ago. Which is where I /should/ have
> learned about discharging CRTs *through a suitable resistor* :-)
This apparently is true of some capacitors as well, I'm not sure which types.
paul
