Call Search
     

New to Ham Radio?
My Profile

Community
Articles
Forums
News
Reviews
Friends Remembered
Strays
Survey Question

Operating
Contesting
DX Cluster Spots
Propagation

Resources
Calendar
Classifieds
Ham Exams
Ham Links
List Archives
News Articles
Product Reviews
QSL Managers

Site Info
eHam Help (FAQ)
Support the site
The eHam Team
Advertising Info
Vision Statement
About eHam.net

   Home   Help Search  
Pages: [1]   Go Down
  Print  
Author Topic: recent production Astron SS-30M issues  (Read 1990 times)
WV1K
Member

Posts: 5


WWW

Ignore
« on: February 03, 2010, 07:00:04 PM »

I have had Astron supplies from when I started in ham radio and have two SS-30M unlit versions from a few years ago. I ordered two lit meter versions thinking I was being smart to enhance the meter readability; they came with loose meters. I'm on my third pair and am getting annoyed now.

The two I now have that I did bother to hook up (the meters were a bit less loose) has a bigger issue that the meters get brighter under load. I'm sure this brightening of the lighting will result in a undesirable pulsating on SSB and CW. In fact I don't see how they could go much brighter than switching the rig on in receive is causing them to go.

And when the radio was running even though I ran them 24 hours without anything connected, they started to stink. I smelled that same odor before when one of the previous two I was sent came with a smashed back of the PS.  

This seems abnormal to me for new item and not much better than what was returned already. Has anyone else seen this other than the one website I did see that says it ? I built Heathkits. This isn't a kit and if it was a chain store I'd be done wit the brand.

It's very disappointing.

I'd like feedback on whether this is a widespread Astron issue in the last few months or a railroad salvage crate.
Logged
KA5N
Member

Posts: 4380




Ignore
« Reply #1 on: February 08, 2010, 07:43:44 AM »

I wonder if the meter lights operate from a different voltage than the regulated output.  In a switching supply only one voltage is regulated and any additional voltages are not.  Since they all stem from the same source any additional load on the regulated voltage would require more flux in the transformer resulting in higher voltages on the unregulated sources.  So this may not be a problem at all and not cause any ripple or noise on the regulated voltage.
The smell might just be varnish or paint "cooking" and may cease after a time.  Of course it could be a problem?
Once you have been stung, you are suspecious of anything unusual.
Allen
Logged
Pages: [1]   Go Up
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.11 | SMF © 2006-2009, Simple Machines LLC Valid XHTML 1.0! Valid CSS!