bell transformer[′bel tranz‚fȯr·mər]
An iron-core, step-down transformer with a voltage step-down ratio of approximately 6 to 1 or 12 to 1, used in low-current power supplies and frequently in circuits for doorbells, alarm bells, and buzzers.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
A small transformer which supplies power, at low voltage, for operating a doorbell or the like.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.