I have been both going to school for and teaching myself about electronics, so I'm new to electrical theory. So please bear with me here.
I am working on a radio that requires -6v DC @ 2.5A max, 1.5A continuous. The circuit of the radio uses a (+) ground. This has caused much head scratching and hair tearing out on my part for some reason because I am struggling with ground referencing. The radio originally ran using a 6v battery, the (-) pole attached to the power connection and the (+) pole connected to the chassis. The chassis also has a lug where a connection to true earth is supposed to be made or however you say it (the third prong on an AC plug if I may put it deftly as an example), but this does not have to be connected in order for the radio to work.
My question is this: I want to replace the battery with a linear power supply. AC in, DC out. Problem is, everything I look at that's reasonably priced use (+) voltage regulators. Can I take a power supply that has no ground reference (no third AC prong) and uses a (+) regulator, and simply connect the (-) output to the radio and the (+) output to the chassis to have it work? Or do I really need a power supply that utilizes (-) voltage regulators?
I am working on a radio that requires -6v DC @ 2.5A max, 1.5A continuous. The circuit of the radio uses a (+) ground. This has caused much head scratching and hair tearing out on my part for some reason because I am struggling with ground referencing. The radio originally ran using a 6v battery, the (-) pole attached to the power connection and the (+) pole connected to the chassis. The chassis also has a lug where a connection to true earth is supposed to be made or however you say it (the third prong on an AC plug if I may put it deftly as an example), but this does not have to be connected in order for the radio to work.
My question is this: I want to replace the battery with a linear power supply. AC in, DC out. Problem is, everything I look at that's reasonably priced use (+) voltage regulators. Can I take a power supply that has no ground reference (no third AC prong) and uses a (+) regulator, and simply connect the (-) output to the radio and the (+) output to the chassis to have it work? Or do I really need a power supply that utilizes (-) voltage regulators?