homebrew 40m trap

Vertical antenna for 40 and 80m - Homebrew a vertical antenna for 40 and 80 meters band based on popular HF2V model by DL7JV

Center-Loaded Off-Center-Fed Dipole - 6 band - Multiband Center-Loaded Off-Center-Fed Dipole (CL-OCFD) antenna that work on 80m 40m 30m 20m 15m 10m by ON4AA

The Homebrew Slim Jim Antenna Gain - Slim Jim antenna gain

Projects and Info Center - Antenna projects and info center by KP4AO, including The Optimized Wideband Antenna (OWA) Yagi and Skyhawk, a state-of-the-art trapless tribander

Omiss - OM International sideband society incorporated nets 75M, 40M, and 20M Nets begin one hour earlier during Daylight Savings Time

CT2GQV homebreing blog - The Speaky HF SSB transceiver and other homebrew projects Homebrew of radio equipment, antennas, tuner, etc.

ON6MU's website for Radioamateurs and SWL's - Ham homebrew, software, and ham info

rec.radio.amateur.homebrew - HAM construction and experimentation

AB4EL Archives - Weekly archive of rec.radio.amateur.antenna rec.radio.amateur.digital.misc and rec.radio.amateur.homebrew

Barker & Williamson - Dipole antennas, unique broadband antennas, trap dipole antennas, coils, accessories for HF radio

The Ventenna - Rugged, disguised 2m, 220MHz, 440MHz, and 2m/440 dual band antennas, HF portable antennas, portable dipoles.

Unadilla Antennas - The Big Signal, W2AU, W2DU, W2VS, traps InLine, Intenna, An-sulator, End-sulator, Old Reliable by Unadilla Antenna Manufacturing Co.

Almost all digital electronics - This site is dedicated to electronics hobbyists, engineers, and Radio Amateurs interested in circuit design, homebrew and kit projects.

Heathkit SB-220 and SB-221 essential mod - Modifications to avoid damage when 3-500Z tubes fail.

Funkenhauser's WHAMLOG & Mediumwave DX Links - Free WHAMLOG files download page, medium wave (AM/BCB) resources, homebrew loop antennas, radio receivers, DX lists, DXpeditions, ODXA MW Notebook.

Antenna Maker  ^{updated  pop} - Antenna design program for Quads, Yagis, Inverted Vees, J-poles, Trap Dipoles and more.

YPlog - YPLOG logging software for Windows support Icom and Kenwood Radios, map programs and a program for coaxial trap design.

40MHz Frequency Counter Module - Design for a very low cost 6-digit frequency counter module using of the shelf components

Walford Counter Kit Frequency Counter Kit Construction - homebrew a frequency counter by M1HOG

40 meter 100 watt Transmitter - 40 meter transmitter by K9GDT

EI9GQ  ^pop - Homebrew page with some great homebrew gear shown here.

SM0VPO Homebrew pages  ^pop - Harry Lythall SM0VPO/G4VVJ homebrew web site, contains several projects, antenna notes and plans, receivers and transmitters plans, regularly updated.

N3LS Larry  ^pop - Amateur radio links and homebrew projects

40 meter CW/SSB Receiver - The K9GDT 40m receiver

G3TXQ SWR meters - Homebrewed SWR meters projects by G3TXQ