[sdiy] Power Supply Question

[Ray Wilson]

One half of the power supply will probably just not work. You could see what
it would do by just connecting one 9V battery. The single 18V AC wall wart
with the 2 diodes and filter caps (and I would add LM78L12 regulators) is
probably your best and simplest bet.

You could also make a battery holder that accomodates larger batteries which
would last longer and provide more current. The original design uses very
little current so I take it you have added some additional circuitry (right
on! :-) )

Ray



----- Original Message ----- 
From: "Rude 66" <r.lekx at chello.nl>
To: <music.maker at gte.net>; <synth-diy at dropmix.xs4all.nl>
Sent: Sunday, June 06, 2004 10:56 AM
Subject: Re: [sdiy] Power Supply Question


> > Wow, what a relief from the analog better, no digital better, no vinyl
> > better, no CDs better...  I broke my delete key on that one.  Whew.  So
> thank
> > you for this,  a REAL SYNTH-DIY question!
> >
>
> (lifts imaginary glasses from eyes) it is I! Leclerc!
>
> it was me who originally asked ray this question. his synth asks for 2 9v
> batteries for power, but i wanted to power it from a wall wart of some
sort.
> all the mentioned options are a bit over my budget, it's supposed to be a
> cheap fun synth after all..;-) but thanks for the options.. i was a little
> lost on what to do. 2 9 volt supplies? one 18 v supply? a splitter? etc.
>
> what about a compsomise? can i use one normal wall wart adapter and one 9v
> battery? if so, ray, what would be best to power what? would a dying
battery
> cause any interesting side-effects like in circuit bending?
>
> r./
>
>