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  #1  
Old 01-14-2013
kcasanova kcasanova is offline
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Default Increase Potentiometer Value to control photo studio lights?

Hi, I've got a set of photography studio lights and found that they are too bright even on the lowest settings .theres a control knob which is basically a b500k dual potentiometer that controls the output flash power but even on its lowest setting 0 its still too bright. i was wondering if i changed the b500k to a larger value if it would help decrease the output power of the lights?

i would be grateful for any advice

thanks in advance KC
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Old 01-18-2013
PedroDaGr8 PedroDaGr8 is offline
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Depends on how the system is designed.

If they feed the final power through the pot then yes.

If the system is some sort of feedback using the 500K pot then maybe (the system may go unstable if output gets too low or the system may not be capable of going that low period).
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Old 01-18-2013
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Phaedrus2129 Phaedrus2129 is offline
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You can tell which by using a multimeter to measure current through the pot. If it's a few amps, then it's the former. If it's in the mA region then it's a feedback loop.
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electronics, increase, photography, potentiometer, variable resistor

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