Hi Paul
Good to see you here! I am well and hope the same for you.
I recently replaced my interconnects (pre to power, DAC) and am now using the unshielded Slinkylinks. I only get the irritating sound when I use my active pre (McCormack ALD-1). Oddly enough, when the passive Bent Audio TAP is in the chain, I don't get this ticking sound when the lights or fan is turned on or off.
Thanks for your offer to send me the suppression parts, that is very kind of you. I will try to ask my electrician if he stocks these and to perhaps instal them in this one switch that is causing problems.
Best Regards
Dennis
Ps, I replied your email a while back. Keep well and take care!