This circuit is suggested by Texas Instruments in his Optoelectronics Sourcebook. Any photo transistor can be used and the transistor can also be a BC558. The meter is an analog type with end of scale of 100 µA.
This circuit is suggested by Texas Instruments in his Optoelectronics Sourcebook. Any photo transistor can be used and the transistor can also be a BC558. The meter is an analog type with end of scale of 100 µA.
