air core capacitors

Coil Designer - Mk 2 - This page lets you do calculations for single layer air cored coils using the solenoid formula

1:6 Balun for HF - PD2HFE project of a 1:6 Balun for HF Bands using a T-200 toroid core

4:1 balun project - CVARC 4:1 Balun Project Kit by AE6YC

Guanella 4:1 balun - This article reviews the proposition that a 4:1 current balun in the style of Guanella can be constructed with both pairs of windings sharing a common magnetic circuit.

Cushcraft Trap - Coaxial Capacitor Repair - Repairing coaxial capacitor on cushcraft trap. Parts are no longer available from the manufacturer, home repair is the only option.

Linear Focus Parabolic Wifi Antenna - This antenna can be made in a couple of hours and involves a fair amount of measuring, cutting, bending, and bolting metal.

Open Channel - CB radio site for UK including repairs and much more

TACLog - Tac Log is a free input format log book for VHF/UHF/SHF contests. Where most other programs dictate the order and format of the input data during contesting, TACLog gives you freedom of operation, both on the air and on your computer. EDI format and Region 1 rules compliant.

Northern California Ham Kids - The website for the Northern California Amateur Radio Kids Group.

Misek Antenna Research - Publisher of The Beverage Antenna Handbook. Supplier of transformer cores, clips and FET's used in Beverage Antenna construction.

Verdant - Designer and manufacture of Airborne Antenna & Radomes covering a range of applications. Products include vhf antenna ,uhf antenna,navigation antenna,comm antenna,blade antenna,vor/ils antenna ,L band antenna, direction finding antenna,DF antenna,vor,ils, IFF antenna on aircraft,aircraft antenna for airborne application.

Renair Antennae - Antenna Manufacturer of Base station antennas, Colinears, Yagis, Whips, Portable, Handheld, PCB and Embedded Antenna Modules

Vishay BCcomponents - manufacturer of passive electronic components, emerged from Philips Electronics Components, ceramic capacitors, resistors, fuses, varistors

Taiyo Yuden - Ceramic capacitors, inductor ferrite products, high frequency dielectric components like chip antenna and filters.

Epcos - Manufacture capacitors, sensors, diodes, varistors, chokes, inductors, ferrites and accessories

Icom IC-9100 at HamFair 2009 - Firsts pictures of Icom IC-9100 taken at Tokyo HamFair 2009

Ten-Tec Jupiter 538 Repair - Low-pass filter relay and reverse polarity repair notes by VE7TK

Smiley Antennas - Ham radio VHF UHF antennas, aircraft, scanners, marine vhf antennas

SellWeb  ^updated - Electronic components online shop, resistors capacitors cables diodes transistors ic sockets relays microcontrollers PCB prototyping switches potentiometers

Vetex - Radio Repair - Based in Virginia USA, offer repearing services for amateur radio equipment and related accessories

WSRotor - WSRotor v1 is a freeware windows talking rotator control program for the Prosistel CBOX Rotator Controller written for use of the visually impaired.

White Stick Log - White Stick Log Version 1 is an amateur logging program for the visually impaired. Based on Easilog it has slightly reduced facilities.

K7NWS 10 Meter Beacon Project - The K7NWS beacon is an entirely homebrew affair. The transmitter outputs approximately 1 watt at 28.265 MHz.

Repairing FT-101 - Repairing the YAESU Transceiver Model FT-101E.

Ferrite for RFI - Ferrite cores for RFI Suppression