[volt-nuts] Finally got around to modifying my Fluke 845ab with LED's

Chuck Harris cfharris at erols.com
Tue Sep 9 23:12:38 EDT 2014


Hi Mark,

What would your PWM sensor circuit do if all of the AC was in the blue, and the
white light appeared as a DC bias on the phototransistor?

Mark Sims wrote:
> BTW,  the PWM sensor is a silicon phototransistor with not much blue light sensitivity...


More information about the volt-nuts mailing list