[sdiy] AS3394E: Practical power supply?

[cheater cheater]

LED buzz is a major component of the output. I remember spending days
trying to figure out how to get rid of it, even building an RF probe
to figure it out.

On Sat, Nov 20, 2021 at 7:41 PM chris <chris at chrismusic.de> wrote:
>
> On Fri, 19 Nov 2021 17:47:47 +0100 cheater cheater <cheater00social at gmail.com> wrote:
> > On Thu, Nov 18, 2021 at 7:07 PM chris <chris at chrismusic.de> wrote:
> > >
> > > I think the word of caution is not against smps in general, but w.r.t. a
> > > filthy +5V going to a micro controller, including all current/voltage
> > > spikes coming from digital operation.
> > > Before you know it, you may hear something like a software LED refresh
> > > rate on the supply line.
> >
> > Are you saying the TB-303 does not have The Sound? Blasphemy!
>
>
>
> Oh, now I understand. The TB-303 never had an oscillator. It just used
> LED bleed as a sound source. And since the processor wasn't fast enough
> for higher refresh rates, it was marketed as a bass machine. Now it all
> fits together...
>
> Actually, I never cared for 303s at all. I wasn't even tempted to get me
> a VA emulation for some 300 bucks.
> So I'm not just blasphemic, I am the opposite of a real believer.
> Ok, now I can expect the Spanish Inquisition to come after me.
> (Even though they say "Nobody expects the Spanish Inquisition!")
>
> Chris
>
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