voltage converter

Balun 1:1 - 1:1 Ruthroff voltage balun using a T200-2 Toroid core

Balun 4:1 - 4:1 Ruthroff voltage balun design using a T200-2 Toroid core

Morse code to text converter - Online morse code conversion tool

SB-220 Repairs and Modifications - Heathkit SB 220 mods, replacing the Zener ZD1, replacing the plate-voltage voltage divider, adding a keying circuit for solid state transceivers

Heathkit SB-220 Meter Repair - Repairt a Heathkit SB-220 Linear Amplifier with a bad Plate Voltage meter

MDSR - Modulator-Demodulator Software Radio A radio communication system where modulating and demodulating components are implemented using software on a personal computer or other embedded computing devices using by a converter.

A NiCAD Battery Charger - A NiCAD Battery Charger with Current and Voltage Limiting

LF Converter - Home made LF converter, listen to signals below 300 KHz

High voltage power supply - An High voltage power supply design by F1FRV

40 CW QRP Transmitter  ^new - Here is a easy to build and cheap CW transmitter using 40 m cristals. Power output is approximately 6 Watts for a supply voltage of 13.8 VDC

SWR calculator - Online VSWR Voltage Standing Wave Ratio Calculator

MDSR / SDR by VE3LNY - An SDR project, MDSR modulator-demodulator software radio, made using an inexpensive converter and a pc. MDSR has a transceiver and a receiver converters.

VGA To Scope Converter - Converting a computer\'s VGA output for an oscilloscope

TV To Scope Converter - This project takes after the VGA-to-Scope converter by using composite video rather than VGA signals to create a display on an oscilloscope.

RF Probe Project - If you needed the ability to quickly measure RF voltage for tuning filters and cavities this RF Probe probe is for you

Building the Elecraft XV144 Transverter - Construction of 28 MHz to 144 MHz Transmitting and Receiving Converter by KP4MD