[sdiy] Tube amp cap discharge tool?

[Bob Weigel]

PS and yes I've done caps like that and they do blow bits of metal off 
the ends of tools..however...the typical tube amp I think we were 
talking about ...that's a little overkeel. -Bob

harrybissell wrote:

>BAD BAD advice (let 'er rip).   The smile is not enough disclaimer.  ;^)
>
>Some newb (which Michael B isn't) will end up daid !!!
>
>I work with caps of 1500 - 3000uF charged to 700VDC with VERY LOW
>ESR... that will make your insulated screwdriver go supernova and fry your
>face.  If the molten metal does not hit you directly it will be good for a nice
>suntan from the ARC !!!
>
>Using a resistor is the best way.
>
>H^) harry
>
>Bob Weigel wrote:
>
>  
>
>>The lamp will spark initially but the response time of a typical light
>>bulb is milliseconds I think due to the tiny tiny amount of thermal mass
>>involved :-).  So it will help some. But hey..just get a cheap
>>screwdriver with a well insulated handle and let er rip! :-)  -Bob
>>
>>Ken Stone wrote:
>>
>>    
>>
>>>>Might be a bad idea at 300V...
>>>>
>>>>(what voltage you got in AU ?   Our light bulbs are 120V)
>>>>
>>>>
>>>>        
>>>>
>>>Our mains is 240V. Even so, using a light bulb is still a bad idea. Filament
>>>resistance is too low when it is cold, so I'd expect you'd still get a heck
>>>of a spark (the sort that blows away a chunk of your terminal)
>>>
>>>Ken
>>>
>>>_______________________________________________________________________
>>>Ken Stone   sasami at hotkey.net.au or sasami at cgs.synth.net
>>>Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
>>>Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>
>>>
>>>
>>>
>>>
>>>
>>>      
>>>
>
>
>
>  
>