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Circuits, pictures and data about toroids, tubes and home made power amplifiers

Pictures of a homemade monoband linear amplifier for 160m band powered by 3 x QB5/1750

A homemade interface for any android device, allow to receive and trasmitt SSTV PSK RTTY from an android tablet based on the DD7LP original project include demo of a sample DIY kit.

Basic magnetic loop antenna examples and loop aerials theory explained. This article inclued some interesting tricks on building magnetic loop antennas and an usefull excell sheet to help compute magneti loop antennas calculating power efficiency from 10 to 40 meters band

Adapting a common PC earphone with microphone to connect to a transceiver via a homemade pre-amplifier, using a simple chip with aprox 10 db gain. Includes a schematic diagram

A gallery of home made capacitors made with ALU clamping plates and teflon insultators

A homemade oak plank drive-on mast holder proved functional but heavy and cumbersome. A lighter, compact commercial version from Amazon seemed ideal but couldn't fit the preferred Jackite pole. Costly alternatives, like a $100 mast holder from Three Mosquitoes Gear, were impractical. The solution came through DIY ingenuity: a piece of 2" PVC and hose clamps, repurposing materials already on hand. This simple, effective design perfectly accommodated the Jackite pole, demonstrating the power of resourceful problem-solving.