[Amps] grid fuses

[Will Matney]

Joe,

See below;

*********** REPLY SEPARATOR  ***********

On 7/21/06 at 9:47 AM Joe Subich, W4TV wrote:

>Will writes: 
>
>> That would be like a capacitor charging up with only 
>> one lead connected to a power supply, and the other lead left 
>> un-connected. It can do it before the fuse blows, but not 
>> afterwards, there's just no path for it to work. 
>
>You have obviously not been knocked on your but by a capacitor 
>that is totally disconnected from the circuit and in storage.


Oh yes, by 25-30 kV. That from the storage of HV in a CRT from a TV. That's the possible charge between the anode and the aquadag coating.

 
>There is a reason that high capacity devices are shipped and 
>stored with a shorting wire across the terminals.  They will 
>spontaneously charge! 
>
>If you don't believe it, get a multi KV 1000 uF oil filled cap 
>and leave it set on the floor for a year or two then grab the 
>terminals (don't do this at home and without medical help in 
>attendance). 


Joe, your not compairing apples to apples here. Your compairing a vary large capacitor to a piece of wire about a foot long (if that) when its straightened out. I've never seen the grid in a tube charge up by setting on the shelf. Also, the re-charging of the large capacitor is caused by something else all together different than what's in question.


>
>73, 
>
>   ... Joe, W4TV

Best,

Will