cobra 19

A Reduced Half- sloper for 160 meters - A half sloper antenna for 160 meter band Italian translation of a WD8DSB article appeared in a QST issue during 1998.

G7LRR Low Band Antennas - G7LRR Amateur Radio Site,160m Helical Antenna

137 MHZ QHF Quadrafilar APT Antenna - This version of the 135mHz quadrafilar antenna for APT reception is an adaptation from Bill Sykes and Bob Cobey's article Taming the QFH which appeared in the March 1997 RIG magazine.

N4JTE Antennas Priority listing - Just Too Easy 40 meter reversible quads in two an three element version

W4JOH Cobra Antenna - The original Cobra antenna, is a multiband 160 or 80 to 10 meter, designed by W4JOH is built using standard insulated wire of about 14 gauge and fed with 450 ohm ladder line down to the shack into a tuner.

Vacuum Tube (Electronic Valve) Museum - Vacuum tube museum 1910 to 1960 with pictures and notes.

Old Radio Parts - Vintage and reproduction electronic parts specialist - Antique radio dials and knobs, 1940-1970 era phonograph cartridges, needles, idler wheels.

Main Page - RadioCanadaDXGroup - The Radio Canada DX Group is a non-profit, 11-meter, Citizens Band Radio Group, established in 1969.

Tesla Radio Club - N2EE NT1E VA1A founded in October of 1996 by Yuri Blanarovich, K3BU. Sponsor the Tesla Cup Contest

IQ2C Amateur Radio Contest Team - The IQ2C Contest Team was founded in Cinisello Balsamo near Milano, Italy in 1997

DF0RI VHF Contests 1986-1996 - Results and info on VHF and HF contest station DF0RI

N7LE Central Oregon DX Club - The club was formed at a meeting of a group of hams on a May 1989 afternoon at Jake's Truck Stop in Bend.

Frankford Radio Club - The Frankford Radio Club originated in the Frankford High School, in Philadelphia, around 1927.

California QSO Party - The California QSO Party (CQP) is the premier state QSO party held every year on the first weekend of October. The Northern California Contest Club (NCCC) has sponsored CQP since 1974.

VE2EK Ham radio blog - Ham radio and Radio professionnal experience since 1971. Georges VE2EK - ZS1ii - 9Q1EK

VE2EK Georges - Amateur radio adventures since 1971

GM2T Cockenzie and Port Seton Amateur Radio Club - We are the premier Amateur Radio Club in the Edinburgh area, since our formation in 1984 we have done much to raise the profile of our hobby in the area.

W9BPT Palisades ARC - This club originated in the mid 1950’s with a small break in the late 50’s early 60’s and a rebirth in the middle to late 60’s.

Australian amateur population trends 1998 - 2007 - Over recent years the number of issued amateur licences has been declining, the trend was about 2.8% pa decline over the five years to 2002.

CQ Serenade Song - CQ Serenade was composed sometime between 1965 and 1970 by Maurice Durieux, VE2QS.

Intruder Amplifiers - Poewer amplifiers for 10m band. Also dealer for Galaxy, Connex, Magnum, Cobra, Browning, and others

Ham Radio's Technical Culture - A history of ham radio culture: how ham radio enthusiasts formed identity and community through their technical hobby, from the 1930s through the Cold War.

Advanced Component Electronics - The Electronic Components Source in the Silicon Valley since 1978

BEIJING ELJVT - Sell the China made electron tubes over a long period of time, the vacuum tubes/electron valves/Power tubes/Audio Tubes/Thyratrons/Magnetrons and accessories, the tube sockets, the vacuum capacitors, high voltage ceramic capacitors, aluminum electrolytic capacitor.

CW Filter - I0QM Gaussian CW Filter page This Filter for the weak signals is the evolution of the simple Universal State filter, already published on "Radio Rivista", the 8/1993