There is a lot of variance in "walwart" supplies.  Some are AC out, some
DC and a few DC regulated.  Typically the dc ones are pretty poorly
regulated due to really cheap transformers.  I always make the
assumption that the DC ones are pretty much unfiltered DC and add
filtration and regulation accordingly.  It is a good idea to check them
to see if the rated current capability is really there by loading them
down in a test. =20

=20

John Nelson

=20

________________________________

From: psn-l-request@.............. [mailto:psn-l-request@...............
On Behalf Of Randy
Sent: Thursday, March 10, 2005 9:24 PM
To: psn-l@..............
Subject: Power supply questions

=20

Has anyone operated the PSN amp filter on 5 - 6 volts?

=20

I recall someone on the list using 2 wall wart power supplies back to
back for the positive and negative supplies.  Did you filter or
stabilize any further and if so how?

=20

Thank you for any advice.

=20

Randy















There is a lot of variance in =
“walwart”
supplies.  Some are AC out, some DC and a few DC regulated.  =
Typically the dc
ones are pretty poorly regulated due to really cheap transformers.  =
I always
make the assumption that the DC ones are pretty much unfiltered DC and =
add
filtration and regulation accordingly.  It is a good idea to check =
them to see
if the rated current capability is really there by loading them down in =
a test. 


 

John =
Nelson

 









From:
psn-l-request@.............. [mailto:psn-l-request@............... =
On Behalf Of Randy

Sent: Thursday, March 10, =
2005
9:24 PM

To: =
psn-l@..............

Subject: Power supply =
questions



 





Has anyone operated the PSN amp filter on 5 - 6 =
volts?





 





I recall someone on the list using 2 wall wart power
supplies back to back for the positive and negative supplies.  Did =
you
filter or stabilize any further and if so =
how?





 





Thank you for any =
advice.





 





Randy