Up for sale is an authentic vintage CTS (Chicago Telephone Supply) potentiometer made in the USA.

Brand: CTS (EIA Code 137).

Date Code: 8117 (Manufactured in the 17th week of 1981).

Resistance: 500 Ohm (500Ω).

Termination: Solder Lugs.

Condition: Original vintage part, clean back.Ideal for restoring vintage amplifiers, industrial controls, or specialized audio equipment from the early 1980s.