[sdiy] DC-DC Converters

[Cornutt, David K]

From: Shokwave [mailto:shokwave at nb.aibn.com]
> the SDIY motto 
> has always
> been "linear please". 

I recently built the first of my modular "function blocks"
(about 8 units' worth of MOTM/Dotcom/Modcan/Cynthia, or it
would have been if I'd measured right).  I used a Condor
for the +/- 15V, but for the +5 I got a switcher.  My 
reasoning was that the modules that use +5 probably do
so for logic, and that's going to wind up dirty anyway.
Plus, I saved about 30 bucks that way.  It seems to work;
I haven't noticed any noise problems.  

> My SDIY prejudices made me buy a linear PS in the end, of course.

Yep, same here.  Even though my experiment seems to have
worked, for the next two function blocks I ponied up the
extra 30 bucks and ordered Condor triple-output supplies.