gel cell charger

Cubical Quad Antenna for 10 mt. - This home-brew antenna for 10 meters band cost just a few dollars, but gave excellent results by WA6CDO

Quad Antenna System by Pfeiffer Maltese  ^pop - Excellent Quad Antenna projects for 40 20 17 12 10 and 6 meters band in this pdf file project by Pfeiffer Maltese

4 element yagi for 24MHz Priority listing - Optimised with the very latest PSO (particle Swarm Optimisation) techniques. Perfect flat SWR and excellent performance throughout the band and easy to self-build.

7elements 21MHz OWA Yagi - An Excellent 15M compact 7el OWA Yagi for the 21MHz band. SWR remains below 1.1:1 from 21-21.45MHz. Tapered elements in Metric and USA sizes

6 elements OWA Yagi for 21 MHz Priority listing - Optimised with the very latest Particle Swarm Optimisation techniques, a superb 15M OWA Yagi with excellent all-round performance.

7 elements OWA Yagi for 20 meters band - Optimised Wideband Array with low SWR across the whole of 20m with excellent gain and F/B. European and USA sizes

14elem. 144MHz OWA EME Yagi - Simply a superb 50Ohm 2m Yagi with excellent bandwidth and most important, low noise.

146MHz 5/8 Ground Plane Antenna - 146MHz 5/8 ground plane tower mounted antenna. The antenna was largely based information and analysis provided by the RSGB's. VHF UHF Manual, fourth edition by G.R.Jessop, G6JP

40 Meter Rotatable Dipole - An excellent all-around 40 meter antenna for those who don’t have room for a yagi by K6IF / W6BDN

Bobtail dipole - Bobtails are vertical arrays that look like the letter "E" turned 90° clockwise onto its tails. They have 3 quarter wave vertical elements and are one wavelength long. The Half Square is a shortened Bobtail- it has 2 quarter wave vertical elements and is a half wave long.

Impedance Matching - Article by By David Knight and Nigel Williams on Impedance Matching, basic principles, popular matching networks, L-Network solutions, materials and components in impedance matching designs

4 element LFA Yagi for 28MHz  ^updated Priority listing - The lastest PSO (Particle Swarm Optimisation) techniques where used to produce this fantastic 10m antenna. Excellent performance from a short boom. USA/UK and European tube sizes.

Scouting New Zealand JOTA - JOTA provides an excellent opportunity to meet Scouts and Guides from many countries and other parts of New Zealand.

CE5BYU Radio Club Los Angeles - Radio Club Santa Maria de Los Angeles, Chile

NP Technologies Inc - Design, develop, test and manufacture a wide range of Amplifier products including highly linear class A Broad Band, Cell Band, Pulse, AM & FM broadcast and Military VHF

SSB Electronic - RF Cable, Connectors, Adaptors, Ecoflex, Aircell, Aircom Cable

Drake TR7 Restoration - On these pages you will find articles and pictures reagarding a renewed Drake TR7 by DK4DDS

Icom IC-T90 Kenwood TH-F6 - Review bu N9EWO about this triple band transceivers

Marine Audio Direct - From marine stereo, to marine radio ,cellular amplifiers,cb radios, marine antenna and more marine radio products online shop

Bose Headphone Mod - Adding a boom mike to Bose Quiet Comfort (QC-1) noise-cancelling headphones

Fast, smart NiCD/NiMh battery charger - PCB for a battery charger described in the datasheet for the MAX712/MAX713 fast charge controllers.

NiCad battery charger plan - SV1BSX project for a Nicad battery charger

Home made Artificial Ground - This Artificial Ground has been designed by Colyn Baillie-Searle GD4EIRP

DRAKE TR7 Downloads - Circuit diagrams drake tr7, Schaltbilder Drake Tr7, antenna tuners, baluns, and home brew power supplies, dual tone ssb test generator, zweiton ssb test generator, zweiton testgenerator, dual tone test generator by DK4DDS

Homebrew external speaker - PE1OPM home made external speaker project