Search for snap on ferrite beads. You can add one at the computer end, or the brick end, or both. You could also put one on the A.C. cord next to the brick to keep the noise from using the A.C. cord as an antenna.
Sent from my MetroPCS 4G LTE Android Device -------- Original message --------From: Edward Bartolo <edb...@gmail.com> Date: 3/25/18 1:03 PM (GMT-06:00) To: dng <dng@lists.dyne.org> Subject: [DNG] Protect laptop from power supply voltage transients Dear All, Sorry if this question is not related to software. DNG is frequented by many people who manage computer as their bread winning job. So, I am asking here. Lately, I have experienced an amplifier input failure that was supplied audio signals from a laptop powered with an AC mains power supply. As you know, these AC power supplies are of the switching type that use an inductance to transform voltage. The problem with these power supplies is the fact that energising an inductance, also energises parasitic inductances and capacitances that give rise to transient interferences that may cause an external circuit to fail. Has anyone used some sort of filtering circuit to protect their laptop/s or computer/s? _______________________________________________ Dng mailing list Dng@lists.dyne.org https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
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