| Spotlights |
T-Network tuner simulator
This is a simulator for the popular, series capacitor, parallel inductor T-network tuners.
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| Air-wound 4:1 balun |
Using a fullwave delta-loop on my attic fed with openwire feeder, I was in need of
a 4:1 balun to connect this antenna to my AT100Pro automatic tuner. While constructing those
is usually done using a toroid, I decided to go for an air-wound version. You can read more
about it here ...
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| Microprocessor controlled LAB power supply |
This series of documents describes the step by step construction of a laboratory-grade microprocessor
controlled power supply, capable of delivering 0-30V @ 10A. You can read about it here ...
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| Magnetic loop antenna |
If you think that a small antenna can not perform well on HF, think again and try your hands
on a magnetic loop, also called STL (Small Transmitting Loop). After a lot of reading about the
subject, I constructed my own. This really is a work in progress as I am all the time changing
the design. The images shown still represent the first version of this antenna, in the mean
while I am working on a motor driven vacuum capacitor to allow for remote tuning of the antenna.
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