mikratt

Thanks LM, I got it to work. I talked to a friend who knows a little about electronics. I got the schematics from him, it's the same one as on the calculator page and told him the problem with the lack of current. I showed him the my posts and your answers and the link to the tutorial and he noticed that in the tutorial it use a 1k ohm resistor (R1) and not a 240 ohm resistor as in the schematic I was using. So we tried different values with the LM317 Calculator and figured out we needed more resistance. He suggested trying the 1K resistor. When I got home I didn't have that size resistor. I changed the 5K potentiometer to a 25K and used the 5K pot as the R1 and adjusted it as I needed to get it to work and it did. Thanks again Mikratt

Hi MP, I am not using a rectifier bridge. I have eleminated the Transformer and the rectifier bridge by using an Wall Wart AC Adapter with an Output of 24DC 1Amp. Sorry you

Hi I am new hear on this fourm and I am trying to build one of these power supplies. Instead of using a Transformer and a Bridge I wanted to use an AC adapter that has an output of 24V DC 1A. The problem is I get the varying voltage from 20V DC to about 8V DC and very little amperage about 100 milliamps max. I need to get between .3 amps to 1 amp. I don't know what is wrong any suggestions. Thanks Mikratt