Thanks for all kind advices.
I'm thinking to buy a power supply which produces +/-15V capable of 0.8A per rail, literally Power One HAA15-0.8-AG, then add 7812 and 7912 accordingly. Should I use the 7912 for the negative supply Shouldn't I?
I can't calculate how much current the circuits consume from the schematics as I'm quite a beginner.
All I can do is building the modules one by one and measure the current with multimeter. Though I guess there won't be so much current running as most of them use only one or two ICs such as 555timer. A LFO I will build uses five TL082s and two LM13700.
Let me know if I might have a problem.
Thank you very much anyway.
I'm thinking to buy a power supply which produces +/-15V capable of 0.8A per rail, literally Power One HAA15-0.8-AG, then add 7812 and 7912 accordingly. Should I use the 7912 for the negative supply Shouldn't I?
I can't calculate how much current the circuits consume from the schematics as I'm quite a beginner.
All I can do is building the modules one by one and measure the current with multimeter. Though I guess there won't be so much current running as most of them use only one or two ICs such as 555timer. A LFO I will build uses five TL082s and two LM13700.
Let me know if I might have a problem.
Thank you very much anyway.
--- In cgs_synth@yahoogroups.com, Richarius Molindarius <richmolindarius@...> wrote:
>
> Also - if possible, find out just how much current will be drawn from the
> +V and -V sides of the power supply. THEN get 12 volt regulators that are
> rated for a fair bit higher than that amount.
> I don't know the general rule for heatsinks on voltage regulators but I do
> believe it safe to say that if you're going to be drawing more than 0.5
> amps from each of them, they should have heat sinks attached to them as
> well. The heat sinks help to disperse the heat from the voltage regulators.
>
> On Tue, Oct 2, 2012 at 6:48 PM, <sasami@...> wrote:
>
> > **
> >
> >
> > Yes, there is a problem doing that. Resistors control current, not voltage.
> > You could add a 7812 and a 7912 regulator from the output of the +/-15 to
> > give you +/-12V
> >
> > Ken
> >
> > >Hi there. I've just wondered if there is any problem that making a +/-12V
> > from a +/-15V power supply by simply inserting some registers, I want to
> > use
> > both voltages so that I can mix some modules which I've taken from several
> > designers.
> > >
> > >Kind Regards
> > >
> > >--- In cgs_synth@yahoogroups.com, "fuyuhiko" <hiko_goldenballs@>
> > wrote:
> > >>
> > >> Thanks Dave for the information.
> > >> I will plan what exactly I want to build.
> > >>
> > >> Cheers
> > >>
> > >> --- In cgs_synth@yahoogroups.com, Dave Kendall <davekendall@> wrote:
> > >> >
> > >> > MOTM used to make a PSU complete with front panel as a kit, (MOTM
> > 900)
> > >> > using a power one HBB15. (0.8A per rail)
> > >> > Not sure if it is still being sold, but power-one's are dead easy to
> > >> > wire up - basically just mains wire, socket and fusing, and then run
> > >> > the ±15V to the distro board of your choice :-)
> > >> >
> > >> > Google should show up plenty of info on how to do it.
> > >> >
> > >> > cheers,
> > >> > Dave
> > >> >
> > >> > On 19 Sep 2012, at 13:16, fuyuhiko wrote:
> > >> >
> > >> > > Thank you for the reply. Is the Power-one used for each
> > synthesizers
> > >> > > by encasing with circuits or does anyone make a power supply with
> > it?
> > >> > >
> > >> > > --- In cgs_synth@yahoogroups.com, "goldencardigan" <dean.lowe@>
> > >> > > wrote:
> > >> > > >
> > >> > > > Also keep an eye on ebay for power-one or condor brand linear
> > power
> > >> > > supplies. Lots of DIY'ers use them. You will spot one or two hiding
> > in
> > >> > > back of Fonitroniks racks on his website. You can find them in lots
> > of
> > >> > > different volatges and up to 1.5amps. Reasonably easy to wire up.
> > >> > > >
> > >> > > > --- In cgs_synth@yahoogroups.com, "fuyuhiko" <hiko_goldenballs@>
> > >> > > wrote:
> > >> > > > >
> > >> > > > > Thanks for all generous replies, it's very helpful and I've
> > been
> > >> > > relieved.
> > >> > > > >
> > >> > > > > The linear power supply seems not bad, but can be confusing as
> > >> > > Ove said.
> > >> > > > > I will consider buying either Doepfer one or customizing the
> > >> > > linear power supply to be easily used.
> > >> > > > >
> > >> > > > > Thank you very much and good luck for your inventions.
> > >> > > > >
> > >> > > > >
> > >> > > > >
> > >> > > > > --- In cgs_synth@yahoogroups.com, "roglok" <roglok@> wrote:
> > >> > > > > >
> > >> > > > > > These seem to be quite popular too:
> > >> > > > > >
> > >> > > > > > http://www.tiptopaudio.com/zeuspwr.php
> > >> > > > > >
> > >> > > > > > although, like the Doepfer, they provide only +/-12V...
> > >> > > > > >
> > >> > > > > > Here's an example for a pre-built 15V PSU, but be aware that
> > it
> > >> > > only delivers 500mA:
> > >> > > > > >
> > >> > > > > > http://www.blacet.com/misc.html
> > >> > > > > >
> > >> > > > > > --- In cgs_synth@yahoogroups.com, Ove Ridé <nitro2k01@>
> > wrote:
> > >> > > > > > >
> > >> > > > > > > On 15 September 2012 23:09, fuyuhiko <hiko_goldenballs@>
> > >> > > wrote:
> > >> > > > > > > > Hello there.
> > >> > > > > > > >
> > >> > > > > > > > This is totally newbee question. I'm thinking of buying a
> > >> > > linear power
> > >> > > > > > > > supply to get DC +/-15V as building a power supply seems
> > >> > > difficult for me.
> > >> > > > > > > >
> > >> > > > > > > > For instance;
> > >> > > > > > > >
> > >> > > > > > > >
> > >> > >
> > http://www.conrad-uk.com/ce/en/product/511815/VOLTCRAFT-VLP-2403-240W-
> > >> > > DC-Power-Supply-Linear/2110330&ref=list
> > >> > > > > > > >
> > >> > > > > > > > But Im not sure if using this type of supply is efficient
> > >> > > for the future
> > >> > > > > > > > use.
> > >> > > > > > > > Is there any drawback of using this type of power supply?
> > >> > > > > > > >
> > >> > > > > > > > Please let me know if you have any opinions.
> > >> > > > > > > > I live in the UK.
> > >> > > > > > >
> > >> > > > > > > Hello. That's a lab power supply. If you intend to do any
> > >> > > kind of
> > >> > > > > > > eletronical prototyping work, you should have one. You
> > won't
> > >> > > regret
> > >> > > > > > > getting it. I am not familiar with the quality of that
> > brand,
> > >> > > but the
> > >> > > > > > > specs look ok.
> > >> > > > > > >
> > >> > > > > > > However, It would be a bit inconvenient to power a synth
> > >> > > system from a
> > >> > > > > > > lab power supply. You need to plug in cables for every time
> > >> > > you want
> > >> > > > > > > to use it, and not confuse the + and - cables, etc. For
> > daily
> > >> > > use, I
> > >> > > > > > > would probably recommend something like the Doepfer A100
> > kit.
> > >> > > > > > >
> > >> > > > > > > http://www.doepfer.de/a100_DIY_kits.htm
> > >> > > > > > >
> > >> > > > > > > --
> > >> > > > > > > /Ove
> > >> > > > > > >
> > >> > > > > > > Blog: <http://blog.gg8.se/>
> > >> > > > > > >
> > >> > > > > > > "Here is Evergreen City. Evergreen�¿ is the color of
> > >> > > green forever."
> > >> > > > > > >
> > >> > > > > >
> > >> > > > >
> > >> > > >
> > >> > >
> > >> > >
> > >> > >
> > >> >
> > >>
> > >
> > >
> > >
> > >
> > >------------------------------------
> > >
> > >The CGS Modular Synth home page: http://www.cgs.synth.net/
> > >Yahoo! Groups Links
> > >
> > >
> > >
> > >
> > __________________________________________________________
> > Ken Stone sasami@... otherunicorn@...
> > Modular Synth PCBs for sale <http://www.cgs.synth.net/>
> > Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>
> >
> >
> >
>
>
>
> --
> Take care,
> Warmth and Peace,
> Rich
>
> http://www.damian.deathlehem.com/ - my modular synth
> http://www.soundcloud.com/Richarius - my latest composition snippets
> http://www.youtube.com/dolphinicus/ - various module videos of mine / etc.
>
>
> [Non-text portions of this message have been removed]
>