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/diy/ - Do It Yourself

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>> No.2766318 [View]
File: 4 KB, 312x311, opamps and leds.gif [View same] [iqdb] [saucenao] [google]
2766318

>>2766224
>i tied + to ground yet it lights a led

if you run an op-amp in open loop, the output is either gonna be high or low.
when it's low it'll light an LED tied high, and vice versa.
so one of the LEDs in pic is always gonna be on.
no mystery there.

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