ok, to run servos you don't need all that much filtering, but how much
depends on the specific amplifier topology - you can try it unfiltered, and
so long as you stay below the limits of the transistors, you will do no
harm - if the system seems sluggish or unstable, add filtering - the caps do
more than just remove ripple, they also provide a surge current capability

"Ignoramus14096" wrote in message
...
On 2010-06-08, Bill Noble wrote:
use it for what? the application will determine the required purity of
the
DC

for running servo motors via amplifiers.

i

"Ignoramus14096" wrote in message
...
I found a DC power supply among the stuff that I had. This is a Syncor
PP-1659A/G military power supply called "battery charger". It is a
multitap
transformer and a rectifier. Goes up to 150 volts and up to 20 amps.

I fixed up whatever physical damage it had (missing banana plug) and
now it seems to work well, except that on some settings it does not
seem to have good contact. Probably needs some multitap contacts
cleaned.

Anyway, I can set it to, say, 76 volts DC and just user it? Do I need
to put in any capacitors, since this is a pretty bare rectifier?

i