BLIND-HAMS Archives

For blind ham radio operators

BLIND-HAMS@LISTSERV.ICORS.ORG
Options: Use Forum View

Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Subject:
DC Power Supply Roar
From:
Bob Martin <[log in to unmask]>
Reply To:
Bob Martin <[log in to unmask]>
Date:
Mon, 13 Oct 2008 20:13:18 -0400
Content-Type:
text/plain
Parts/Attachments:
text/plain (19 lines) 
Earlier today, my almost new ASTRON 35 developed a really loud roar under 
load.  It had been on receive for 2 or 3 hours.  Then, At 5 Watts transmit 
on FM,  it was hardly noticed.  At about 40 Watts it is quite lout and at 
100 continuous it can be heard throughout the entire basement. Just now, I 
turned it on and went through the cycle noted above with no noise heard.  In 
stand-by I can't hear it at all now but when I was experiencing the problem, 
I could feel it vibrating ever so slightly.  Will try it before I turn in 
tonight.

Any thoughts?

73
Bob Martin
KC3FI


EchoLink Node - 55127
Please visit http://www.wan-leatonks.net.

ATOM RSS1 RSS2