These are two output transformers from an old Admiral amplifier that used four EL84 tubes in push-pull configuration. Each one is approximately 2.25 x 2.75 x 2 inches. They both test as having no shorts. I remember them as having 10k primary so good for EL84 or 6V6. They have two speaker connections, one for 8 ohm and one for 16 ohm.