Asymmetrical dual input amplifier

Details Asymmetrical dual input amplifier Asymmetrical dual input amplifier

H - Electricity

03

F

330/12

H03F 3/68 (2006.01) H03F 1/30 (2006.01) H03F 3/183 (2006.01) H04R 25/00 (2006.01)

Patent

CA 1290028

ABSTRACT OF THE DISCLOSURE An amplifier system having an input active device at its first input and having its second input provided through an inverting means to that first input. Such a system is of particular value for hearing aids, and in particular for hearing aid circuits which also require the ability to use as a selective input a "telephone coil" inductive sensor for ease of telephone use by the wearer, which coil requires to be switched in and out of the operative circuit.

563749

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