type

Convert 40m 2-element to a Phased Drive Array - This presentation details the work of converting a 40m 2-element reversible beam antenna into a phase-driven type of array

The Short Dipole Using Coils  ^new - A very popular method of making a short dipoles resonate at a given frequency. This type of antenna is suitable for single band, narrow bandwidth use.

Feeder types - Article descrive the different types including coax and open-wire feeder and waveguide.

Inside The Icom AH-4 Antenna Coupler - The AH-4 is an antenna coupler/tuner designed for long wire or whip type antennas.

SMD Jig - Prototype - Building a SMD jig to hold parts during assembly

Modifying HP Proliant Server Power Supplies - This article documents the modification of 2 types of Hewlett Packard switching power supplies to enable their use as power sources for ham radio equipment