This type of resistance (METAL FILM OR METAL FILM RESISTANCE) is the one most commonly manufactured today, with improved noise and stability characteristics compared to carbon and metal oxide resistances.

7H4B automatic flow regulating valve. Nor it has been possible to test. It is not shipped with its original box.

http://www.labguysworld.com/AMPERITE_BALLAST_TUBES.pdf

OC3W JAN - RAYTHEON vacuum valve made in America. They have been tested with a HICKOK TV-7D / U. It is sent in its original box.

This type of resistance (METAL FILM OR METAL FILM RESISTANCE) is the one most commonly manufactured today, with improved noise and stability characteristics compared to carbon and metal oxide resistances.

This type of resistance (METAL FILM OR METAL FILM RESISTANCE) is the one most commonly manufactured today, with improved noise and stability characteristics compared to carbon and metal oxide resistances.

This type of resistance (METAL FILM OR METAL FILM RESISTANCE) is the one most commonly manufactured today, with improved noise and stability characteristics compared to carbon and metal oxide resistances.