| Electronics > Beginners |
| Hi, is they any op amp with pin 4 as positive and ground as pin 7 ? |
| (1/1) |
| nyame:
Hi, please i wish to know if there is any op amp with pin 4 as positive and pin 7 as ground ? |
| awallin:
that looks like a typo in the instructions.. |
| wraper:
Particular op amp is mentioned (741). And it's explicitly said to connect "+" of the battery to the "-" pin of the op amp, and the same nonsense for other power pin. Therefore what written is incorrect. |
| Audioguru:
Many lousy old 741 opamps (designed 50 years ago to use a 30V supply) do not do anything with a 9V supply and a 9V battery quickly drops to below 6V. Use a modern opamp that works with a 5V to 9V supply. |
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