I suggest a big wish list, then pare down to the amount that
will fit on the PCB size you want without making the
density too high.
Really high density will amke the layout hard, possibly
affect yeild and the ability of some folks to successfully
complete the project.
I'm all for incorporating a good feature set, but its for sure
that 'creeping featurism' will set in if we're not careful.
The 78L05 is very unlikely to support the requirements of the LCD
backlight.
I'm agreeing if you just want the 5V for the LCD itself... the 78L05
will handle that.
(maybe I'm not up to speed yet, there are only a couple hundred posts
not counting files etc... :^)
H^) harry
John Loffink wrote:
>
> Synth circuits use 78L05s all the time: MOTM, CGS, etc.
>
> What do you propose? Not all systems have 5 volts.
>
> Why make users build messy harnesses or adapters when multiple power
> connectors could be supported on the PCBs? I disagree, 0.100" should
> be
> supported as well as any other common power connectors.
>
> John Loffink
> The Microtonal Synthesis Web Site
> http://www.microtonal-synthesis.com
> The Wavemakers Synthesizer Web Site
> http://www.wavemakers-synth.com
>
> > -----Original Message-----
> > From: ComputerVoltageSources@yahoogroups.com
> > [mailto:ComputerVoltageSources@yahoogroups.com] On Behalf Of
> harrybissell
> > Sent: Tuesday, March 14, 2006 10:26 PM
> >
> > IMHO trying to make 5V from 15V with an onboard linear
> > regulator is a loser. The power dissipation is going to
> > be so high you are just installing a space heater for
> > your VCOs.
> >
> > I think that the .156" connector should be supported, and the
> > .1" connector added ~if and only if~ board density permits.
> >
> > You could easily make up an adapter harness for ANY of the above...
> >
> > 10V of drop on the regulator (guaranteed :^) is too much (imho)
> >
> > H^) harry
> >
>
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