Vacuum tube microphone apparatus

Details Vacuum tube microphone apparatus Vacuum tube microphone apparatus

1992-09-28

1994-10-18

Kuntz, Curtis

Electrical audio signal processing systems and devices

Having microphone

381115, 381114, 381113, 381112, 381111, 361704, H04R 300

Patent

active

053575776

ABSTRACT:
A microphone apparatus including a vacuum-tube amplifier amplifying an electric signal converted from an acoustic signal includes a thermo-ionic cooling element having two surfaces, in which a first surface is in contact with the vacuum-tube amplifier for absorbing the heat generated from the vacuum-tube amplifier and the absorbed heat is radiated to the exterior from the second surface.

REFERENCES:
patent: 1988001 (1935-01-01), Flanders
patent: 2920140 (1960-01-01), Morgan
patent: 3188240 (1965-01-01), Lee et al.
patent: 4120019 (1978-10-01), Arii et al.

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