Amplifier for telephone handset

Details Amplifier for telephone handset Amplifier for telephone handset

1977-01-24

1979-04-24

Claffy, Kathleen H.

179 1A, 179100L, H04M 160

Patent

active

041513762

ABSTRACT:
An amplifier for a telephone handset provided with standard telephone line cord having a pair of receiver input signal lines for direct connection to the handset receiver terminals and a pair of transmitter input lines for direct connection to the handset transmitter terminals. A printed circuit board is electrically connected to and secured to the handset receiver. The receiver input signal lines are directly connected to the printed circuit board without alteration. The input signal is received independently of the receiver input signal line polarity. The transmitter input lines are connected directly to the transmitter without alteration.

REFERENCES:
patent: 2808461 (1957-10-01), Thomas
patent: 2885483 (1959-04-01), Faulkner
patent: 2885484 (1959-05-01), Faulkner et al.
patent: 3172960 (1965-03-01), Voyles
patent: 3197570 (1965-07-01), Lambourn
patent: 3254160 (1966-05-01), Day et al.
patent: 3908094 (1975-09-01), Deluege

Affiliated with

Also associated with

Rating

Amplifier for telephone handset does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Amplifier for telephone handset, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Amplifier for telephone handset will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1992649