HOMEBREW
TWO ELEMENT CUBICAL QUAD 10/12/15 meter: project and general information for building a Quad;
ROTARY DIPOLE 17/20 meter;
A 3 element DELTA LOOP on 20 meter, 4 on 15 and 5 on 10: my new beam (Just some good ideas)
Contest Antenna: a new way to see the problem;
All about BALUN: choke, collins, VHF, bazooka ecc.; ratio 1:1, 4:1, 6:1, 9:1 ecc.
All About ANTENNA ROTATOR: how it works, how to repair, how modify.
PROBLEM ON THE ROOF? How to have a support for your antennas with no holes in the wall;
Duplexer 144/430 mhz;
Build a LINEAR AMPLIFIER for HF bands using an old CB's one: 400 Watt with few $!
A 50 mhz Transverter: use an old CB as a duo-bander RTX for 28/50 mhz for portable operation;
An ELECTRONIC BUG : for who wants start using horizontal-key without spend too much;
ACWS: Automatic CW Sender: a small circuit to transmit memorized CW messages .
A secure "medium" POWER SUPPLY (protected for High current, Voltage and RFI)
INSTRUMENT FOR HAM HOMEBREWING
LC METER Inductance and capacitance meter for measuring inductor and capacitor;
ESR
METER: Equivalent Serie Resistance
Tester for capacitors
A variabile 0-30 V power supply;
Do you need a DOUBLE VOLTAGE for digital applicationes? NO PROBLEM! How to obtain it without to buy a specific transformer;
How to generate an audio signal for various applicationes;
S.W.R.- meter
Learn soldering;
Soldering PL259;
Start using "Digital Techniques";
Alternative Stuffes for Home-brewers;
How to regenerate " Ferric (per)-chloride" used to make printed board;
A good paint for RF;