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3 votes
1 answer
2k views

Op-amp dual supply methods

To power an op-amp with a dual supply (+Vcc and -Vcc) you can use two power supplies connected in series. I would like to find an alternative and less expensive way to do this as (in my project) the ...
philfs's user avatar
  • 73
3 votes
3 answers
1k views

Best way to get stable +-9 volts AND 5 volt from a 9V DC source

I'm quite new in electronics, but I'm not scared to try it (Look Mum No Computer). So please bear with me and tell how to improve my asking. I am building a guitar pedal. It's a op-amp based parallel ...
Jesper Kragh's user avatar