In a message dated 11/03/2004 13:06:28 Eastern Standard Time, n4lq@iglou.com
writes:
<< I want a power supply that makes NO noise. No hum,
no fan, just 20-25 amps of 13.8vdc. Any suggestions? Oh yes BTW, I have
a TT 262 supply that hums too! Not loud but still, I can hear it. I want
silence. >>
The switchers have fans, I find them noisy. I have used many Astron linear
supplies. I find that if they are located a few feet away from the station
equipment, on a surface which provides acoustic dampening (like a couple of
firm
mouse pads), or in a vented enclosure, that I can achieve the desired "Sound
of Silence." You might look at some of the principles of audio studio design
for some more ideas.
73 Blair k3yd
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