[sdiy] further wishful thinking

[mrb]

with a single 30v source and some caps and diodes you can create a +/- 15v
supply with rectification -- is this right?

On Wed, 17 Aug 2005, geoff james wrote:

> thanks to all who responded to previous wall wart querry.
> priced the ELPAC wmo71 and it was $US 40.
> my application was to supply power to a 180M roland key board.
> scots suggestion to try the PAIA solution seems the cheapest route.
> i had actually built a small power supply (+/- 15v), but with cct board + heat sinks + transformer it was difficult to fit inside the keyboard.
> now to prove to you that i am not an EE-----here goes.
> " is it possible from a single +15v souce to create +/- 15v."
> regards
> geoff james
>