Offered is the Chicago Transformer Co. Filter Choke. This one is an 82 ohm type. Part numbers are as follows: CR-122423 and 678-0029-00. The US Navy insignia appears on the side. The choke is clean and in good condition. 1/8 inch mounting rods are at 1 5/16 and 1 1/16 inch on centers. 1 5/8 X 1 3/4 X 2 3/16 inches tall. Pick up the filter choke for your own amp or Hi Fi for replacement use or for an amp of your own design. Chicago Transformer Co. Division of Essex Wire Corp, Chicago, IL. Mouse over the photo images to zoom in. NO RESERVE!! Thanks for looking.