[sdiy] Tube amp cap discharge tool?

[Bob Weigel]

I should have known I needed to overqualify my statement on this one :-) 
-Bob

Ken Stone wrote:

>The problem with the cheap screwdriver trick is you need a new screwdriver
>each time you try it :)  I've blown a huge chunk out of one doing this ONCE.
>
>Ken
>
>  
>
>>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/>
>>>
>>>
>>>
>>> 
>>>
>>>      
>>>
>_______________________________________________________________________
>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/>
>
>
>
>  
>