[time-nuts] power supplies

[Bob kb8tq]

Hi

Spend some time on eBay looking for Power Designs bench supplies. 
They went out of business years ago so they are not a popular item. 
Thus the price is usually pretty reasonable. I have never seen one that
was a switcher….

Bob

> On May 1, 2020, at 2:51 PM, jimlux <jimlux at earthlink.net> wrote:
> 
> What with telework, I'm doing more timenuts-ey stuff at home, and the power supply conundrum has come up.
> 
> There's a plethora of interesting widgets scattered across my bench requiring variously, 5V, 8V, 12V, and 15V.
> 
> I've got a box full of various fixed voltage supplies, mostly linear, picked up over the years.
> I suppose I can package a bunch of those up in a bigger box with banana jacks or binding posts.
> 
> 
> And then there's some things where you'd like current limiting and/or variable voltage.
> 
> So I've started looking at inexpensive bench power supplies - there appear to be dozens, if not hundreds, of these available.  There must be dozens that are all very similar - They're switchers for the most part, displays, etc. for $50-100, from different vendors, all similar.
> 
> Are they essentially commodity? Or are there particular brands that are good or bad?
> 
> Are they all noisy?
> 
> Weird UI problems (7 menu layers with a single knob)?
> 
> 
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