Active8 wrote:
I have some cans from an old AM FM transistor radio. ISTR that the
color of the slug indicates what it is.

Where can I find that info?

TIA
WARNING
Not all cans obey the same "color code"
However for AM cans it seems that
RED slugs are oscillator coils,
1st IF cans are often YELLOW, 2nd IF
cans are WHITE, 3rd IF cans are BLACK or BLUE
I don't know about the FM ones.