Kunal Kandekar wrote:
-------------------------------
"...had applied a constant current source to the output pin 4, and was getting a variable *voltage* output between the reference voltage pins (14 and 15) !! It worked perfectly.... Amazing!"

Around 1830 a German physicist discovered that there is a linear relationship between voltage and current, called resistance. I guess he thought that was pretty amazing. More than 170 years later, the magic has faded a bit though... ;o)

Rob.