This circuit is from a 1977 National Semiconductor manual. The circuit directly indicates the temperature on a 0 to 1 mA instrument. The scale is in degrees Celsius from 70 to 80º C.

This circuit is from a 1977 National Semiconductor manual. The circuit directly indicates the temperature on a 0 to 1 mA instrument. The scale is in degrees Celsius from 70 to 80º C.