Abstract :
An electronic wattmeter for measurements in the frequency range 20kc/s to 1 Mc/s has been described. It employs a modified form of the bootstrap ohmic multiplier. The original multiplier circuit, for its use in the wattmeter, necessitates the use of isolated power supplies. An attempt has been made to derive these isolated supplies from the grounded one, thereby making the scheme more practicable. It is hoped that the wattmeter will be of use for power measurements in Radio Frequency Heating.