Power Supply

for those times when you have a 28v relay but want to use it with ...

Project for a 12 volt, 30 ampere Power Supply Unit

Two types of home brewed 12 20 Ampere 13 8volt power supplies including detailed part ...

13.8 V 15A from a PC power supply

20 22 Ampere or 30 32 Ampere 13 8 volts power supply RE PSF14A20 or ...

Converting Computer Power Supplies (PSU) to stabilized 13.8 V DC 20 A

This little project will make a portable 28 Volt DC power supply using two 12 ...

Schematic of a regulated 0-24v 2A Power Supply

What do you do with a bunch of old computer power supplies?

ON6MU 4 A power supply using a BDX33

G4YNM article on a 40A power supply unit

Schematic of a 4 AMP / 18v regulated power supply by ON6MU

A 13 8v 5Amp 78H05 based power supply for portable use In this example used ...

These pricey battery powered devices are the only type of generator that can be used ...

A 600 volts power supply for QRO

Need a variable power supply that is short circuit protected and over voltage protected Here ...

Dchematics and photos of a secure power supply short cut Rf feedback high voltage etc ...

Schematic diagram for a high voltage power supply by W4NFR

VU3NSH article on high current universal supply for rigs

Technical and modification information on Astron Power Supplies compiled from a number of different sources ...

Astron RS35m Power Supply Schematic annotated with Notes from QST Hands On Radio Experiment 35 ...

In this article we share a useful and simple project to convert an unneeded car ...

13.8 V / 15 A from a PC Power Supply in German

Convert a PC power supply for your ham radio transceiver

Computer power supply converted for ham radio use

PC power supply conversion for ham radio use Slide show overview showing how convert PC ...

Converting HP ProLiant Power Supplies for Amateur Radio Use

Converting a PC Switching Power Supply to 13.5V by AA3SJ

A DC buss distribution box, make it yourself for less than $10

This page describes a DC to DC voltage converter pretty simple for currents up to ...

How fix Astron 70 model number VS-70M amp meter not working

An High voltage power supply design by F1FRV

High Voltage Supply for GS 35B Amplifier

The article describes how to build a 12V emergency power supply for amateur radio stations ...

The practice of converting computer server power supplies to make a very high quality high ...

How to obtain a dual voltage without a transformer

WV0NNI 2 800 VDC 2 Amps Continuous Variac adjusts filament voltage A voltage doubler circuit ...

Variable Power Supply for the bench

This article documents the modification of 2 types of Hewlett Packard switching power supplies to ...

Two types of multi functional Home brew 6 8Amps 20 Ampere variable power supplies by ...

Converting A PC Power supply for Amateur Equipment

+/- 15 V, 1.5 A power supply project

A linear regulated power supply 2A 20 V designed mainly to get used to soldering ...

A project of a linear regulated for low noise power supply 16v, 10A

13,8 v / 1 A power supplies using the UA78 series by ON6MU

A home learning tutorial on the basics of designing simple power supplies for radio projects ...

A good overview article on power supplies by Karl Shoemaker AK2O of the Spokane Repeater ...

Power supply from 3 to 30 V with an L200 IC by dl5dbm

Notes on troubleshooting and repairing a yaesu FP-29 power supply by va3cr

Notes on the Troubleshooting and Repair of Small Switchmode Power Supplies

how I learned to stop worrying and love the magic smoke

This is a great project to learn about the basics of electronics batteries and renewable ...

20 Amps peak of recycled grunt for SSB transceivers

Switching Regulator Basics By Mike Martell N1HFX

Testing a linear regulated power supply using headlight bulbs for loading.

N1HFX article on adjustable voltage regulator

The purpose of this project is to build a smart switch A smart swith is ...

1.2-30V 1.5A variable regulated power supply

1.2 to 30 Volts 1.5 Amps Power Supply

A compact voltage protector/fuse assembly for 100-watt transceivers by AD5X