That's interesting. About the only way I know that a linear supply can
be noisy is if the regulator oscillates. That can easily happen. Most of
them use emitter followers, which are often unstable driving a
capacitive load. That's usually easy to fix by inserting a small
inductance between the emitter of the transistor and the load. A few
turns of the appropriate sized wire around a ferrite bead usually works.
73,
Scott K9MA
On 2/25/2019 18:57, William Rascher wrote:
On Monday, February 25, 2019 4:26:40 PM CST Rose wrote:
I've found instances of regulation failures caused
by loose hardware.
With the RS-35m Astron Linear PS I have issues with noise. I purchased the
PS because everyone around me swears that they are great. Well, from my
experience the Powerwerx SS-30DV is far cleaner, quieter, and fewer $$. I
though the problem was something along the line of LED lighting, in my
shack was generating the noise. When I used a battery for the PX3 & KX3
in my shack during a power outage the PX3 screen was so clear I was
stunned. I have 3 different Astron linear PS and all are noisy.
--
Scott K9MA
k...@sdellington.us
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
