[sdiy] Tube amp cap discharge tool?

[Oakley Sound]

> i stand by that the best way to safely discharge a cap is by touching 
> it with your tongue.

When I was a kid I used to test the old 6V lamp cells with my tongue. At 
the age of 8 I read somewhere that transformers could make voltages 
bigger as well as reduce them. So I applied 6V to the output of my 
train-set transformer to see if I could get a higher voltage on the 
primary. To measure the voltage I stuck the unconnected mains plug in my 
mouth!

Well my tongue didn't tingle so I thought that this step-up method was 
flawed. So much for that theory... Bear in mind I knew nothing about such 
things as AC or DC (or basic electrical safety for that matter).

So leaving the plug pins still in my mouth I disconnected the battery.

And thus my first lesson in back EMF ended with a very sore tongue.

Tony