[sdiy] Power Supply Question

[Jay Schwichtenberg]

Ray,

It's pretty simple. You don't want a DC wall wart, get an AC one with enough
current and run it though two half wave rectifiers and filter caps.


---+-->|--+-- Plus
   |      |
AC |      -
   |      - filter cap
   |      |
----------+-- Gnd
   |      |
   |      -
   |      - filter cap
   |      |
   +--|<--+--  Minus

(think I got the +/- right)

Hope the ASCII schematic will come through.
Jay

> -----Original Message-----
> From: owner-synth-diy at dropmix.xs4all.nl
> [mailto:owner-synth-diy at dropmix.xs4all.nl]On Behalf Of Ray Wilson
> Sent: Sunday, June 06, 2004 5:18 AM
> To: Synth-Diy
> Cc: Rude 66
> Subject: [sdiy] Power Supply Question
>
>
> Does anyone have a circuit idea (schematic, web-page, etc) that
> shows how to
> use a wall wart to get a + and - 9V supply at about 50 to 100 mA per side?
> Do they make dual supply wall warts? Do they make wall warts with center
> taps?
>
> Any help appreciated.
>
> Ray
>