Marty Shapiro wrote:
Once near Manteca VOR, I hear on Stockon Approach (now Norcal Approach)
"November xxx (I forgot the number) Uniform Alpha Heavy requests Stockton
ADF practice approach". When I spotted the traffic below me, it was 747.

That must have been me. Not too many private 747's in this area.
I was working on my IFR ticket at the time. ;-)

Gerald