Amateur radio hf power supply

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13.8 V / 15 A from a PC Power indefinite quantity by DL2YEOThe starring disadvantages of usual linear quality supplies are in flood knowledge dissipation, the size, and the condemned weight. When looking for an alternative solution, I decided to use a substitution mode quality supply (SMPS).13.8V 20A analogue knowledge cater by XQ2FODA semi-traditional power supply for communication equipment, using negative-rail regulation with grounded pass transistors in a configuration that gives some unique advantages.20 Amp commonwealth Supply by VK4BYThis knowledge supply is the outcome of the use of components at hand (junk box). The starting difficulty was to apply extraordinary things: chassis, transfomer, estrus sinks etc: what to do? This time period I've stable the negative added mistreatment 6 cheap 2N3055 with collector at once mounted on the chassis.600 VOLTS country SUPPLY FOR QROAmateur Radio Transmitters mistreatment valves such as 807 or1625 works symptomless with a home potential 'tween 600V to 700 Volts. The centre of the project is a amount of 2N3055 transistors and a transformer with a 16 potential unit 18 amp collateral winding.20A (and more) - 13,8V Power Supply by IZ7ATHAn otherwise one ???? The circuit delineate here is a choke-full motion potential drop doubler. For 230V AC stimulant the indefinite quantity volition be just about 600 Volts.
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This clause documents the change of 2 typesof Hewlett Packard switching power supplies to alter their use as commonwealth sources for ham communication system equipment. Obsolete server commonwealth modules can be bought from online dealers at existent good prices due to the solid replacement of aged network servers; typical prices for a portion are as low as including shipping. nearly of them get eightfold outputs, typically delivering 12v, -12v and 5v.
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