[electroking]

This past November, I was near Trois-Rivieres, and I spent an evening
playing with a small radio I have had for years. IIRC, it doesn't even have
a nameplate, although I don't believe it is a homebrew. This is a 4-tube
TRF design with 78 RF amp, 6C6 infinite impedance detector, 41 audio
output and 80 rectifier. I tested the tubes (for the first time in about
30 years of ownership) and found all to be good except the 6C6 that barely
wiggled the needle of my Heathkit TT-1. After a NOS replacement (wartime
U.S. Navy surplus) was installed, I fired up the radio.

With an antenna consisting of the telephone with its 25-foot cord,
I managed to pull in CBC in Moncton with good volume for about an hour, a station about 400 miles away.

You can have fun with a simple AM radio!