Hi guys.
I've experimenting with obtaining a dual + - 15V supply from a single 17V AC in by using 2 diodes as half wave recitifiers and then feeding their output into 78 and 79 regulators. It works but I'm thinking there must be a better more refined circuit that does the job. The resulting power supply is being used to power some high gain mic pre amps so I need a nice stable low noise output from it.
Any ideas ?
I've experimenting with obtaining a dual + - 15V supply from a single 17V AC in by using 2 diodes as half wave recitifiers and then feeding their output into 78 and 79 regulators. It works but I'm thinking there must be a better more refined circuit that does the job. The resulting power supply is being used to power some high gain mic pre amps so I need a nice stable low noise output from it.
Any ideas ?