You are bidding on a Western Electric type GA-50764 Audio transformer. This is a small transformer removed from a piece of vintage Western Electric tube equipment from the mid 1950s. It has windings of 15,000 to 600 ohms. The specifications are marked on the transformer. The military number is TF 1A 13 YY. In size, it measures roughly 1 5/8 by 1 1/8 by 1 3/8, not counting the terminals. It is cosmetically very nice. It is a high quality transformer that should be great for a tube amplifier. Shipping weight is 12 ounces. Please see my other auctions for more interesting radio and audio items, including tubes.