MFOS wall wart to Bipolar power supply

DIY STUFF
1

I’ve built two MFOS wall wart to Bipolar power supplys for my DIY modular case to power one power distribution board each.

There is a discrepancy between the two boards output.

One is +12.10v and -11.99v

The other is +12.17v and -11.88v
Is this second one within range or is there an issue?

Many thanks.
Joe

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2

Per the datasheets, the LM7812’s output voltage is within ±4% at 25°C and the LM7912 is also within 4%. So the positive rail can be 11.5 to 12.5 V and the negative rail -11.5 to -12.5 V.

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Terrific, thanks so much! Good to go!

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