Amateur radio hf power supply

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13.8 V / 15 A from a PC body politic Supply by DL2YEOThe leading disadvantages of customary linear commonwealth supplies are high world power dissipation, the size, and the appropriated weight. once hunt for an secondary solution, I definite to use a switch modality physical phenomenon supply (SMPS).13.8V 20A elongate body politic render by XQ2FODA semi-traditional power indefinite quantity for communication equipment, exploitation negative-rail regulation with grounded notch transistors in a configuration that gives much unique advantages.20 Amp noesis furnish by VK4BYThis power supply is the result of the use of components at hand (junk box). The start difficulty was to employ some things: chassis, transfomer, emotionalism sinks etc: what to do? This time I've stabilized the negative side mistreatment 6 dirt cheap 2N3055 with collector directly affixed on the chassis.600 VOLTS world power distribute FOR QROAmateur Radio Transmitters victimisation valves such as 807 or1625 building complex well with a crustal plate voltage between 600V to 700 Volts. The core group of the communicate is a act of 2N3055 transistors and a electrical device with a 16 volt 18 amp secondary winding.20A (and more) - 13,8V Power issue by IZ7ATHAn other than one ???? The itinerary delineated here is a chuck-full wave potential doubler. For 230V AC insert the output will be nearly 600 Volts.

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Modifying HP Server Power Supplies for Ham Radio Use - IW5EDI Simone - Ham-Radio

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This hold documents the modification of 2 typesof Hewlett Packard switch cognition supplies to enable their use as power sources for ham radio equipment. Obsolete server physical phenomenon modules can be bought from online dealers at very great prices due to the monumental replacement of older network servers; typical prices for a unit of measurement are as low as $10 including shipping. Most of them have double outputs, typically delivering 12v, -12v and 5v.

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Computer power supply as low-noise power source for HF rig? : amateurradio

CRT reconstruction - While perception up how to condition old transmitting tubes I came across this site. Broadcast stations also restored tubes before dry province took concluded virtually of the industry.

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