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Electronics Advice needed anyone?

studiorat · 2009-03-31 02:21:45

Anybody know anything about building a dual rail power supply to give me +V/0V/-V and +48V all DC for a mic amp. I'll need to put 24 to 30Vac into the circuit (probably a kit), I'm wondering what toroid transformer I should start with. 230Vac down to 24Vac or whatever. Also if I need say 100mA for one mic amp will I need…

31-03-2009 02:21AM

#1

studiorat

Closed Accounts Posts: 6,408 ✭✭✭

Join Date: November 2007

Posts: 6098

Anybody know anything about building a dual rail power supply to give me +V/0V/-V and +48V all DC for a mic amp.

I'll need to put 24 to 30Vac into the circuit (probably a kit), I'm wondering what toroid transformer I should start with. 230Vac down to 24Vac or whatever.

Also if I need say 100mA for one mic amp will I need 200mA for 2 or is it a series type affair.

Also if I have 2 mic amps, do I need 3 or 5 rails. I can run all the amps off the same rails yeah?

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Comments

#2 01-04-2009 08:28AM

PaulBrewer

Registered Users, Registered Users 2 Posts: 7,790 ✭✭✭

Join Date: January 2008

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Ask John, all that stuff is up his street ...

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