bridging amplifier

bridging amplifier

[′brij·iŋ ‚am·plə‚fī·ər]
(electronics)
Amplifier with an input impedance sufficiently high so that its input may be bridged across a circuit without substantially affecting the signal level of the circuit across which it is bridged.
References in periodicals archive ?
The bridging amplifier receives signal from the trunk, raises the level and provides the source signal for up to four individual trunk station feeder cables.
In fact, in many cases, the institutional feeder system simply consists of the bridging amplifier and direct cable connection to the user.