HERE ARE SOME OF MY HOME-BREW PROJECTS

1-SATELLITE ANTENNA ROTOR AND ROTOR SETTING CIRCUIT CONTROLLED FROM A HOMEMADE PC SERIAL PORT  INTERFACE

2-DIRECT CONVERSION RECEIVER PLUS DOUBLE SIDE BAND TRANSMITTER 


3-GROUND-GRID TV SWEEP TUBE LINEAR AMPLIFIER


4-MULTI BANDS BASE LOAD VERTICAL ANTENNA


5-SATELLITE ANTENNAS

6-PC INTERFACE


7-SPARK TRANSMITTER


8-CRYSTAL RADIO


9-BFO



MY HOME-BREW PROJECTS STARTED BEFORE I EVEN KNEW AMATEUR RADIO. I GROWNUP WITH THE SCHOOL'S BOY DESIRE TO DO  SOMETHING MARVELOUS. I STARTED BUILDING  UP MY PROJECT FROM SCHOOL'S  PHYSIC BOOKS . I THOUGHT MYSELF A LOT OF BASIC SKILLS STEP BY STEP BY USING WHAT EVER HARDWARE AVAILABLE AT MY HOME . EVEN A SIMPLE THING LIKE THE  DIFFERENCE  BETWEEN A BARE WIRE AND  AN ENAMEL WIRE I DISCOVERED AFTER A SEVERAL TRIALS OF WINDING UP AN ELECTROMAGNETIC COIL. NO ONE HELPED ME EXCEPT MY FAMILY ADMIRE . AT THAT TIME I WAS SO EAGER TO KNOW MORE AND MORE A BOUT THE FACTS AND RULES OF PHYSIC AND ELECTRICITY. AND THE REAL PROBLEM FACING ME  IS THE LACK OF BOOKS AND MAGAZINES !! OH HOW MUCH I SUFFERED FROM THAT  !!.  STILL I CAN REMEMBER WHEN I FIXED UP A MORSE TELEGRAPH BETWEEN TWO ROOMS AT MY HOME . AND THE FIRST SPARK TRANSMITTER I BUILT.
NOW I CAN LISTEN AND TALK TO THE  WORLD WITH MY HOME MADE RADIOS .

DISCLAIMER
 Every reasonable care has been taken in producing this information. However, the author can accept no responsibility for any effect that this information has on your equipment or any results of the use of this information. It is the responsibly of the end user to determine fitness for use for any particular purpose. The circuits and software shown here are for non commercial use without consent from the author.
 

 73 DE ST2NH