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Antennæ and alike subjects:

(07/20/2014) Transmission Lines: a new insight

(04/01/2014) Topics on Transmission Lines

(06/15/2015) Cross-Yagi with 4 polarizations

(02/11/2012) Analysis On Some End Fed Antennæ

(02/11/2012) Paralleled Transmission Lines

(02/11/2012) A Different Antenna;

(02/06/2020) Measuring Antennæ Input Impedances

Several Subjects:

(02/14/2012) Homemade Capacitors

(01/29/2013) 500kHz Filter

(09/04/2012) Resonant Load for 500kHz

(02/11/2012) On Sidebands

(05/02/2012) Digital Frequency Discriminator

(02/11/2012) RMS Power...What's that?

(02/11/2012) A Well-known Interference

(05/09/2013) A VHF Phenomenon

(02/13/2012) The Voice and the Audio Frequencies

(02/13/2012) My First ATV System

(02/14/2012) Active Band-Pass Filter with Adjustable Q

(02/14/2012) An Audio Compressor

(02/14/2012) A DIAC Oscillator

(02/14/2012) A Keyer for Handicapped people or for mobile operation

(02/15/2012) Impedances in Tranformers

(02/15/2012) Resonance and Maximum Power Transfer

(02/15/2012) A Code Converter

(02/23/2012) Ideal Inductors for LC Passive Filters

(02/23/2012) Interference on TV's

(02/23/2012) A Nand Schmitt-Trigger Oscillator

(02/23/2012) A Very Useful Tool

(02/23/2012) An Interesting Trick

(02/25/2012) Coupling Coefficients for Inductors

(02/25/2012) High Resolution Synthesizer

Mathematics:

(10/25/2019) Topics on Solid Angles