User:Ajoyz/Books/Telephone Hybrid Coil

Telephone Hybrid Coil

 * Hybrid coil
 * Transformer
 * Coil
 * Characteristic impedance
 * Voice frequency
 * Two-wire circuit
 * Four-wire circuit
 * Four-wire terminating set
 * Repeater
 * Telephony
 * Line card
 * Ground (electricity)
 * Balanced circuit
 * Telephone
 * Telephone hybrid
 * Sidetone
 * Carbon microphone
 * Impedance matching
 * Antenna (radio)
 * Hybrid coupler
 * Magic tee
 * Rat-race coupler
 * Public switched telephone network
 * Plain old telephone service
 * Echo cancellation
 * Least mean squares filter
 * Echo suppressor
 * Voice over IP
 * Pars pro toto
 * Adaptive feedback cancellation
 * Remote pickup unit