cap discharge resistor

SgtWookie

Joined Jul 17, 2007
22,230
I like to use appropriately rated incandescent light bulbs to discharge caps.

You get a visual indication of the progress, and light bulbs have a rather unique non-linear resistance; it's high when the filament is glowing, and low when the filament is cool; the discharge rate actually increases as the lamp grows dim.
 

debe

Joined Sep 21, 2010
1,389
I agree with Sarge. For HV caps in SMPS ive been using a mains globe with insulated probes for discharging caps.
 

SgtWookie

Joined Jul 17, 2007
22,230
The common name over in the States is "light bulb", although nowadays one has to qualify that with "incandescent" to differentiate the tungsten filament bulbs from CCFL's, LEDs, fluorescent lamps etc.
 
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