I'll post a schematic, but my main problem is that as I draw a load on the power supply it is dropping volts. When I turn on the load (radio) it drops but quickly returns. When I key however it drops a 1/2 a volt then when I talk it drops another volt. Leaving me somewhere between 12.5 and 13.5 volts. This on it's own would not be a problem however I am soon going to be adding an amp and would like to have this figured out by then. I assume I am not putting out enough amps, but don't understand why. The radio does not draw more than 5-10 amps at 13.8 volts. I am currently using three transistors that should supply 8amps apiece if I am not mistaken.
Ok enough jibber jabber here is a schematic
Oh and here is the NPN datasheet http://pdf1.alldatasheet.com/datasheet-pdf/view/78029/AUK/D13007.html
Ok enough jibber jabber here is a schematic
Oh and here is the NPN datasheet http://pdf1.alldatasheet.com/datasheet-pdf/view/78029/AUK/D13007.html