> How does one know when to use a capacitor _vs_ a resistor ?

Hmmm, tricky one. Depends whether you want to offend your
ears or your nose. Caps go BANG, resistors make a lot of
smelly smoke. Personally I'd go for a triac - can take an eye
out, bust an eardrum and they stink, all for 50c. Now that's
value for money. Or two bangs for a buck if you please

You'll have already seen the posts asking fo' mo' info'

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