Malvern, Pa.—Vishay Intertechnology Inc. is upgrading the performance of its 3-V infrared receivers with a new-generation IC that doubles the sensitivity of the device under low-light conditions. The ...
This circuit can be built from readily available low-cost components, some of which may even be hiding in your junkbox! The indicated value of 22 Ω for resistor R1 causes an average current of about ...
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