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Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

Remember they have different pinouts!

The 317 and 337 pinouts are different. Also if I understand you correctly you are trying to regulate +/- 6 VDC from a +/- 9VDC input which is close to the worst case dropout voltage of the 317. Should work but is a little close. Check the pins and make sure they are connected right on the 317 because that sounds like your problem.


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  • Remember they have different pinouts! - Wavy Davy 09:19:48 08/09/03 (0)


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