This project is based on an unregulated wall adapter/transformer for regulating three different DC voltages: 5V, 9V and 12V. These voltages are monitored with a digital monitor. The output of this unregulated transformer is about 15 V for supplying it to each input of each regulator and so you can obtain the voltages of 5, 9 and 12 V.
Please note: Due to inventory packaging methods, you may receive extra components for some products. Some items may not be sold at Jameco and will need to be purchased separately, please review the materials list below.
Build Note: Due to some concerns with the safety of using a metallic enclosure shown in the instructions, we have substituted the enclosure for a plastic type. If you are interested in the original aluminum enclosure, see p/n: 11894.