[sdiy] Variable power supply

[Simon Brouwer]

Hi, 

Also happy with the DP832A here at work. It is a solid linear power supply. A
convenient feature is that it has buttons to switch on/off the separate rails,
or all rails at once.
It has a rather noisy fan though.
http://www.circuitsonline.net/forum/view/130740 describes how a guy replaced it
with a quieter one. The pictures also give an impression of the insides.

Best regards
Simon

> On 06 March 2016 at 09:29 john slee <indigoid at oldcorollas.org> wrote:
> 
> 
> I had one of these cheapo Tenma dual supplies for a while. I found that it
> would behave very inappropriately in the dual-tracking mode and do things
> like turn off one (not both) rail if I changed the voltage. From what I've
> read on list postings here, this can be very very bad if you are using
> certain ICs... I think the SSM2164 [and presumably its Coolaudio clone] was
> one of these?
> 
> I also just didn't like the panel controls.
> 
> I replaced it with a Rigol DP832 and have been very happy ever since.
> Highly recommended! Besides the better UI, it has a third rail for 0-5V
> tasks — I found this useful as a quick, precise CV source when calibrating
> VCOs
> 
> John
> 
> On 6 March 2016 at 02:42, Tom Bugs <admin at bugbrand.co.uk> wrote:
> 
> > Last year I picked up this roughly £100-ish Tenma unit:
> > http://cpc.farnell.com/tenma/72-10500/power-supply-2ch-30v-3a-adjustable/dp/IN06824
> > It seems perfectly fine! (though if I were investing a bit more I'd sure
> > look for HP/Agilent/Thurlby etc)
> > I did look around quite a bit before plumping for this one.
> > Useful having the quickly & accurately adjustable voltage/power even if
> > you leave them set to one value 99% of the time.
> > Also very helpful having the current draw clearly displayed so you know
> > what the circuit is drawing.
> >
> >
> > On 05/03/2016 12:07, Phil Macphail wrote:
> >
> >> Depending on your definition of inexpensive, I have picked-up several
> >> Agilent E3631A PSU¹s for around 200 Euro. They use the 34401A circuits for
> >> measurement, so the output voltage reading is pretty accurate and they are
> >> built to last. Postage costs can be significant though, as they are quite
> >> heavy,
> >>
> >>
> >> Phil
> >>
> >> On 05/03/16 03:57, "Synth-diy on behalf of Joel B"
> >> <synth-diy-bounces at dropmix.xs4all.nl on behalf of
> >> onephatcat at earthlink.net> wrote:
> >>
> >> Hi,
> >>>
> >>> What would folks here recommend for a relatively inexpensive variable dc
> >>> power supply for the synth electronics experimenter?
> >>>
> >>> Joel
> >>>
> >>> Sent from my iPhone
> >>> _______________________________________________
> >>> Synth-diy mailing list
> >>> Synth-diy at dropmix.xs4all.nl
> >>> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
> >>>
> >>
> >> _______________________________________________
> >> Synth-diy mailing list
> >> Synth-diy at dropmix.xs4all.nl
> >> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
> >>
> >>
> > --
> > BugBrand LTD
> > UK company No. 07199808
> > VAT No. GB 988 2629 57
> > 1 Ninetree Hill
> > BRISTOL BS1 3SB
> > United Kingdom
> > www.bugbrand.co.uk
> >
> >
> > _______________________________________________
> > Synth-diy mailing list
> > Synth-diy at dropmix.xs4all.nl
> > http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
> >
> _______________________________________________
> Synth-diy mailing list
> Synth-diy at dropmix.xs4all.nl
> http://dropmix.xs4all.nl/mailman/listinfo/synth-diy