[R-390] Hot Chassis

[Tisha Hayes]

In most cases a hot chassis is caused by one or both of the capacitors that
are built in to the AC line filter are leaking voltage to the chassis,
giving it an AC potential.

There is no way to fix the filter, it is best to replace it. If you go that
far you can find one that has up to 80 dB of attenuation to >300 KHz (up in
to the hundreds of MHz) RFI.

I went with a hospital-grade Corcom filter that is rated for six amps.
Hospital grade devices need to have an incredibly low leakage current
rating as they are often attached to patients. When I properly secured all
of the chassis covers, used shielded and balanced wiring (speakers,
antennas) and mounted the radio in an enclosure it barely noticed the
computers in the same room.

*Ms. Tisha Hayes, AA4HA*