Lamp modulator provides visible indication of presence and magnitude of an audio signal carrying voice or data. It can be made to reflect signal variations of up to 32 decibels. Lamp life is increased by use of a bypass resistor to prevent filament failure.
Lamp modulator provides signal magnitude indication
1970-12-01
Miscellaneous
No indication
English
NTIS | 1970
|3D CAR LASER DIRECTION INDICATION AND EMERGENCY 3D SIGNAL LAMP
European Patent Office | 2021
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