Mohican question, capacitors.

[Geoff Quickfall]

Thanks Jebem.

Interestingly this is a two part shielded cable, one for each speaker terminal. I understand the RF side of the shielding. Also that shielding can form a capacitor and on an ac powered speaker system can wreak havoc on the amp.

Off to electronics shop Monday for the four electrolytic caps and what the heck, some shielded speaker wire.

Our hand microphones jacks on the B777 are situated by the 120v 60Hz power wall plug. When a cheap wall wart is inserted the mic's are erratic. Aviation bulletin, " when wall wart adapters plugged into wall plug hand held microphones cannot be used". Due of course to stray RF emanating from badly shielded wall warts.

Geoff