These are rare images
Solenoids
3-D spirals
My D/B:05-06-1941.I was a recruit in the Corps of EME (Electrical and Mechanical Engineers) in Indian Army at Secunderabad,India.I was a telecom technician in the Army. I got discharge from Army in 1969.I joined Telecom department and retired as SDE/BSNL in 2001 after 32 years of service.
