[sdiy] further wishful thinking

[Scott Gravenhorst]

If the 30V source is _AC_, yes.  DC, no, not without a power inverter, which makes AC from DC.

mrb <mrb at parsons.edu> wrote:
>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 > 
>

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