tmo Posted January 14, 2021 Report Posted January 14, 2021 Are you sure the audio ground and the connector itself is properly isolated from the aircraft frame?
carusoam Posted January 15, 2021 Report Posted January 15, 2021 If you can hear the capacitors charging, and discharging... you have really good hearing... The old strobes are known for this effect. The LEDs, I believe are free of this... Lets ask our LED light expert... @OSUAV8TER (strobe light sounds in audio system, LEDs don’t have this right?) Best regards, -a-
larryb Posted January 15, 2021 Report Posted January 15, 2021 LEDs don’t have high voltage caps like strobe bulbs do. Nothing to hear. 2
OSUAV8TER Posted January 15, 2021 Report Posted January 15, 2021 9 hours ago, carusoam said: If you can hear the capacitors charging, and discharging... you have really good hearing... The old strobes are known for this effect. The LEDs, I believe are free of this... Lets ask our LED light expert... @OSUAV8TER (strobe light sounds in audio system, LEDs don’t have this right?) Best regards, -a- You shouldn't hear the pinging from the LEDs but there are a number of factors that could be driving this. Old audio panel/intercom, wiring, etc. Generally speaking though, LED lighting will eliminate the pinging because they do not charge to discharge to work. 2
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