looking for a picture of CRT EHT arcing

Regards,

Boris Mohar

Got Knock? - see: Viatrack Printed Circuit Designs (among other things)

void _-void-_ in the obvious place

thanks i waded though lots more spark pictures

i went for this one in the end ...

doesnt show it actually in the TV as such but quite spectacular, and clearly uses a lopt, probably realistic of a high voltage monitor, perhaps a bit tweaked though lol. thanks Colin

On a sunny day (Wed, 9 Jul 2008 00:38:06 +0100) it happened "colin" wrote in :

It is not that dangerous, been bitten by that 25kV many times. It is only _dangerous_ when you take out the tube, and a spark hits you from the still charged CRT, and you drop the tube as a reaction. At one time I forgot to reconnect th HV connection, it was hanging of the workbench, and sparked through my pants. Makes you jump!

Not really apropos, but kinda kewl - in HS physics, they had a little lab with an old TV and a scope and meters and stuff. One day, I thought it'd be cool to scope out the waveform at the hor. driver anode, and it made an arc about 2" long from the anode cap to the scope probe.

I didn't get any pictures - I had assumed it was only going to be a couple of hundred volts - I had not learned about "flyback" yet. :-)

Cheers! Rich

In most old tube sets i serviced (i was still a kid) the H. Output anode stayed under 1 kV when properly measured. The RF content allows much longer arcs to be sustained than expected.