Thank-you for the reply.? I did try wrapping the 5 v lead through a toroid I? had, though at 300 hz, even if a square wave, I would not expect much attenuation.? I will try a larger inductance.
On Fri, Nov 2, 2018 at 8:47 PM Glenn <
glennp@...> wrote:
Evan It's almost certain the dimming is done by PWM, ie chopping the LED supply.?? Did you try adding some series inductance to the display supply along with your extra capacitors.?
vk3pe
