Behold, Proctologically Violated©® signalled from keyed 4-1000A filament:

as compared to my home radios/stereos?

All car radio's use an actual antenna to receive signals. Many home
stereo's don't even have a connection for an external antenna
anymore....they're mostly just vapourware.

--
Gregg t3h g33k
"Ratings are for transistors....tubes have guidelines"
http://geek.scorpiorising.ca