This circuit was found in National Semiconductor documentation from the 90s. The circuit uses two sensors, one of which is a reference thermocouple for cold junction.
This circuit generates voltages of tens of thousands of volts for projects such as electrostatic filters...
The circuit is from an old American magazine EDN of 1975, but can be mounted with ease with common...
We found this signal generator circuit in the November 1978 issue of Radio Electronics magazine. The...