Psycho therapeutic equipment - has separate non-sinusoidal electric signal sources supplying loudspeakers and lights

摘要

The equipment incorporates one or more loudspeakers and sources of light. Non-sinusoidal electrical signals are amplified and heard by means of the loudspeaker, and a further source of non-sinusoidal electrical signals, operating quite separately from the source of the acoustic signals, supplies the light source. An amplifier is also included. Amplifier and signal sources can be combined into a single compact unit incorporating all necessary operating controls. The lamps can be white or coloured.