[sdiy] in need of a good bench supply (+/- 0-18 volts and 5)

[Barry Klein]

That might be a good one - I ordered an electronic load by those guys and it 
was good for the money
but had a fatal flaw for me in that it switched load circuits with a relay 
right at 3A and that is right where
my circuits have OCP that I need to check.
Also do not get the PS303D from Action Electronics or others.  Too Chinese. 
Front panel damaged, poor regulation, stupid meters.  The BK1696/7 are dumb 
in that their adjustability is too granular.(big voltage steps) and they 
have a stupidly implemented output enable process - not just an on off 
button...  We did buy a some BK digital switching adjustable supplies, new 
models not in their catalog.  I haven't use them but haven't heard 
complaints, but likely out of your price range.
There are some kits available that would be fine for you if you don't need 
digital displays.  I would search the web for used lab supplies though. 
Sometimes they go for fifty bucks.
At home I have this one: http://www.tequipment.net/InstekGPS3030D.html
It has served me well.  Was cheaper when I bought it at a swap meet.  That's 
another thing - search out electronic swap meets
in your area.  Guys get these and sell them cheaper than in stores and the 
net.

Barry

----- Original Message ----- 
From: "Dan Snazelle" <subjectivity at hotmail.com>
To: "sdiy" <synth-diy at dropmix.xs4all.nl>
Sent: Tuesday, October 27, 2009 7:16 AM
Subject: [sdiy] in need of a good bench supply (+/- 0-18 volts and 5)


>
> I need a solid bench power supply that is NOT connected to my modular, and 
> has a nice case (unlike my home-made stuff) and doesnt suffer from 
> ripple,etc.
>
> so I am going to be buying a bench supply. but wow, they are expensive.
>
>
> my budget for a new or used bench supply is at most, 200 bucks.
>
> I am a bit confused as to whether or not a +/- 0-18 or 20 volt output is 
> considered ONE output or Two.
>
> obviously the 5v output is another out.
>
> so am i looking for a 2 output or a three?
>
> any brands or types to stay away from?
>
>
> I was looking at this one:
>
> http://www.web-tronics.com/dualout03x22.html
>
> but from the datasheet (unless i read it wrong) it seems to have 2 +/- 
> outputs and a 5volt out, which is actually more than I need.
>
> but it IS under 200.
>
> thanks for any help
>
> and if anyone has an extra bench supply they want to sell, well let me 
> know
>
> thanks!
>
>
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