🚀 go-pugleaf

In sci.electronics, heyes@dadev.cebaf.gov (Graham Heyes) writes:
>The strange thing is that some days there is no humm at all,
>other days you can't hear yourself speak.

You can't get hum inducted into a phone wire like this from
a nearby appliance or power cord.  The signal level is too
high.  You get it because one side of the blanced line has
been grounded somewhere.  I'd bet that the problem is in the buried
cable - not your house.  You can check this by taking your
phone out to the box and connecting it at that point.  Remove
the connection to you internal wiring first.  If it still
hums, it's not your problem.  The phone company will fix it
for free.

Does the hum increase when the ground outside is wet?  Does it
go away when it's dry?

Curt