[RFI] Nutone Intercom RFI

[Palomar Engineers]

Yes, both leads through a toroid gives higher inductance than individual
beads. Use largest core in RFI kit and 5-10 turns. If you can measure the
power level needed to cause the problem then you can see if the beads help
by seeing if the power required goes up. This even though it does not
completely cure the problem. If it helps, then more beads will help more is
the principle. -- Jack, K6NY, Palomar Engineers