Another idea is to replace the displays with new ones more
efficient,needing much less current,and then ,to increase the resistor
values,less current=less noise,but i still dont know if such display
exists.
I would like to know your opinion.
Thanks for your time
Diego
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what type of display LED?
can you use standard signal tracing to determine which audio stage is picking up the noise, does the volume control effect it, tone controls etc.
?
m