SIMPLE HOMEBREW AMATEUR RADIO ACCESSORIES     

www.hl1iwm.com

Here is the homebrew corner for radio amateur! To be sure the homebrew is another enjoyment of ham life.

I am not in contact with and have no official source of information from the author.

Note : Please do not mail me asking for the following homebrew.

 

Items

Remarks

Author (Call Sign)

Last Update

IF-232C Interface for Kenwood Radio TS-440S etc.

Schematic

HL1IWM

Apr. 30, 2004

DC 13.8V 30A High Efficiency Power Supply

Schematic

HL1IWM

Apr. 30, 2004

Digital Multi Mode Interface for CW/RTTY/SSTV

Schematic

HL1IWM

May 8, 2004

Simple Welder Temperature Controller

Schematic

HL1IWM

Apr. 30, 2004

Simple Dummy Load 50 ohm 800W / 50 ohm 3KW

Schematic

HL1IWM

Apr. 30, 2004

144/430MHz Dual Band Antenna (Hentenna)

Document

HL1IWM

May 2, 2004

Digital S Meter

Document

JA1AYO

May 2, 2004

Super Small 7MHz EH Antenna

Document

IZ7DJR

May 2, 2004

Simple Electronic Keyer

Document

N1HFX

May 4, 2004

1KHz CW Tone Oscillator

Schematic

HL1IWM

May 4, 2004

Simple 1:1 Coaxial Balun for HF Band

Document

HL1IWM

May 5, 2004

144/430MHz Dual Bands Beam Antenna (2 ele Hentenna)

Document

HL1IWM

May 5, 2004

Simple Mic Selector for Kenwood Radio

Document

HL1IWM

May 5, 2004

Simple Design for DC +8~13.8V 3~30A Power Supply

Excel Sheet

HL1IWM

May 8, 2004

DC +9V 5A Power Supply for Handy Transceiver

Schematic

HL1IWM

May 8, 2004

Simple Wound 1:1 Coil Balun for HF Band

Document

HL1IWM

May 9, 2004

Standby "Bi-" Tone Burster

Schematic

HL1IWM

May 9, 2004

28MHz Twin Delta Loop Antenna (Butterfly Antenna)

Document

HL1IWM

May 11, 2004

Simple 7/21MHz TVI Cable Stub Filter for TV Antenna

Document

HL1IWM

May 16, 2004

Simple Antenna Impedance Meter

Schematic

HL1IWM

May 16, 2004

30MHz Low Pass Filter for HF Band TVI

Schematic

HL1IWM

May 16, 2004

Simple DC Power Supply DC +5~14V 4A (1)

Schematic

HL1IWM

Oct. 23, 2004

Simple DC Power Supply DC +5~14V 4A (2)

Schematic

HL1IWM

Oct. 25, 2004

21/28MHz Dual Bands 5/8 GP Antenna

Document

  ?

Feb. 20, 2005

2 Tone Oscillator/Generator

Schematic

VK3YE

Feb. 20, 2005

RS-232C Interface Adapter for All Transceiver

Document

SCS GmbH Hanau

Feb. 20, 2005

 

Go to Main Page