G29076 ~° Rare Miniature 3 Lead Auto-transformer for Piezo Alarms Voltage Boost

Rare 3-lead ferrite core auto-transformer has a long common lead and approximate 11 Ohm primary and an approximate 118 Ohm secondary. These are found in most high-volume alarms using piezo, as it greatly increases the output volume of the piezo. Size: about 0.36" diameter x 0.55" H (excluding leads).