[Elecraft] K3/100 power supply
VK5ABQ
shanewh at gmail.com
Wed Apr 13 19:51:03 EDT 2011
Thank you for all your replies but I've found negative comments about most
(the power supplies that is....
boom boom)
I found the following complaints/restrictions -
Powerwerx : noisy fan
Diamond 3000: poor reliability on later models
Astron: Linear's are only suitable for 110VAC not 240. Some complain about
fan noise and interference on their switchers.
Samlex: poor reliability
Barrett: $700.
Kenwood: generates electrical interference on 80 and 160m.
XP Power's CCM250 (sold by Amtex,
http://www.amtex.com.au/power_pdf/CCM250.pdf) still looks interesting as it
is convection cooled, weighs 780g and is very small. The 15V model can be
trimmed down to 14.55V but I this may still be too high? Also only rated for
16A continuous and 20A peak. Cost is $380 and lead time 7 weeks. Yes,
interest has diminished.
Conclusion: I'll put off buying the K3/100 for now until I can bothered to
have another look for an electrically and audibly quiet 20A power supply
suitable for 240V.
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