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.
Granta Contest Group - HF amplifier
- The Granta Contest Group was founded in 1997 by Mark G4AXX, Colin G4CWH, Simon G4EAG, Andy G4KNO. The Group gets it's name from the River Granta (or Cam), which passes through Cambridgeshire and Essex.
Using is a 160-10m "desktop kilowatt" linear amplifier using an Eimac 4CX1000A tetrode
- maycom communications products has been industry distributor for over 30 years . Offer main line products and parts for many hard to find items .
Antenna Mounts and Accessories basd in Michigan USA
DEHN, Inc. Surge & Lightning ProtectionPriority listing
- Offering transient voltage surge suppressor, TVSS, patch cables, surge arresters, surge protectors for lightning and power surge protection for electrical equipment, IT networks, communication systems, data lines, relay systems and solid state controllers.
Elsie - Filter Design
- Filter design software. Elsie is an uncommon commercial-grade lumped-element ("L-C") electrical filter design and network analysis program, directed toward the engineer or technician involved in that line of work.