It runs parallel to the satellite receiver cables and
that should be the cause of all that QRM... So I need to reroute
the antenna cables.
Meanwhile I
have a good PSU to use with a typical 50W FM VHF/UHF radio.
Things to try in the future:
The PSU is
not suitable for HF use. Could the PSU be improved with additional
filters? I have not placed any filter on the output but there
is space for the filter inside the PSU box if the fan is moved
to the outside.
Links and documentation:
Atx12V Specification:
http://www.enhanceusa.com/documents/ATX12V_v2.01.pdf
Other specifications:
http://www.enhanceusa.com/support_tech.htm
Basic Modification
Examples:
http://www.antennex.com/preview/archive3/powers.htm
http://www.qsl.net/aa3sj/Pages/PC-Supply.html
http://www.mattsrcstuff.com/PCPS.htm
http://www.qsl.net/vk2ep/news/dec2001.doc
St. Louis
switcher
http://www2.arrl.org/members-only/tis/info/pdf/0205035.pdf
http://www.qsl.net/wj5o/project.htm
http://www.njqrp.org/qhbextra/6/6d.html
http://207.195.94.13/sart/radio_library/switcher-supply.pdf
Advanced ones:
Very complete:
http://www.qrp4u.de/docs/en/powersupply/index.htm
Nice modification
http://www.qsl.net/vk4ba/projects/index.html
ATX power supply
example
http://pavouk.comp.cz/hw/en_atxps.html
Changing an
ATX PSU to 12-24V input (input!):
http://www.acs.comcen.com.au/atxps.html
Data sheets
and tech pubs:
http://www.fairchildsemi.com/ds/TL/TL494.pdf
http://www.fairchildsemi.com/ds/KA/KA7500B.pdf
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http://focus.ti.com/docs/prod/folders/print/tl494.html
Nice Articles
about switched power supply repair
(
on a slot machine tech magazine !! )
http://slot-tech-ftp.serveftp.com:8080/magazine/february02.pdf
http://slot-tech-ftp.serveftp.com:8080/magazine/march02.pdf
Modifing a
PC power Supply for Lab use:
http://web2.murraystate.edu/andy.batts/ps/powersupply.htm
Final version
(for now) with fan outside of the box
Inside View
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