H - Electricity – 04 – R
Patent
H - Electricity
04
R
179/37
H04R 3/00 (2006.01) G10H 1/043 (2006.01) H04R 3/12 (2006.01)
Patent
CA 1095836
PHD 76181 14.6.77 ABSTRACT: A device for electronically simulating the radiation effects produced by a rotary loudspeaker with the aid of two loudspeakers or loudspeak com- binations, in which device a controllable amplifier is associated with each loudspeaker, the L.F. signal being applied to these amplifiers both directly and via a delay means, and both the delay and the gain of the amplifiers being varied synchronously by a subaudio-frequency generator.
291421
Fetherstonhaugh & Co.
N.v. Philips Gloeilampenfabrieken
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