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24 V with LM431
Click on the picture to get a larger view.
The yellow stripe is cathode or the short leg of the LED. The zener DZ1, cathode up. Notice also the yellow dot at the opamp.
Click on the picture to get a larger view.
The yellow stripe is cathode or the short leg of the LED. The zener DZ1, cathode up. Notice also the yellow dot at the opamp.