Welcome to the CRES Projects and Technology page. On this page you'll find articles primarily submitted by club members that deal with various aspects of technology related to amateur radio.
| DATE | AUTHOR | TITLE | TYPE(S) |
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5/10/2009 |
Andrei Cretu, AC8DP |
Converting Server Power Supplies for Ham Radio Use |
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This article documents the modification of 2 types of Hewlett Packard switching power supplies to enable their use as power sources for ham radio equipment. Obsolete server power modules can be bought from online dealers at very good prices due to the massive replacement of older network servers; typical prices for a unit are as low as $10 including shipping. Most of them have multiple outputs, typically delivering +12v, -12v and +5v. Some of them are capable of over 20 amperes continuous output at +12v. This makes them suitable for powering the typical HF amateur rig, which requires 20-22 amperes at full power output. |
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