mic diagram

The flower pot antenna - A portable dual-band antenna working principally on 10 meters but also close to the 30 meter band. It’s compact, light, economical and doesn’t need any radial.

Magnetic antenna fo ULF - Detection and recording of Schumann resonances and other electromagnetic phenomena at frequencies below 50 Hz By Hans Michlmayr

Loop Antenna Basics - Loop Antenna Basics and Regulatory Compliance for Short-Range Radio

Michelle Troutman Electronics - Sams Manuals and Manufacturers' Service Manuals Sams from the early 1950s through late 1970s; various service manuals for brand name equipment from the 1950s to 1991. NOS Vacuum Tubes A price list of over 1100 tubes.

Michigan Antique Radio Club - Michigan Antique Radio Club, or MARC. The MARC was officially founded October 19, 1985 at the Dillon Inn (now the Hampton Inn) in Lansing, Michigan. Our mission: To preserve the history and enhance the knowledge of radio, television and related disciplines

AIRWAVES:Wayne's Vintage Radio's - Old radios collection, vintage radios, sale trade and wanted

Art's Antique Radios - A good reference site for antique radio, bakelite paskon plastinc decription, microphones picture and antique radio gallery

Micronetics Ltd - Electron tubes/valvs NOS & new production.

Antique Radio Schematics and Capacitors for Tube Radios - Specializes in antique radio schematics and capacitors. carries antique radio schematic diagrams and electronic circuit service information for american, canadian and european antique radios.

Atwater Kent Home Page - This is a "techie" site, dedicated to presenting service manuals, parts lists, schematic diagrams and other information of value to restorers and technicians who try to keep these radios working

Canadian Antique Radios Schematics Diagrams Service - We specialize in canadian antique radio schematics for vintage tube radios made in canada. we carry lots of factory electronic circuit schematic diagrams as well as all rcc / radio college of canada service data 1920's - 70's.

Badger Contesters Online - The Badger Contesters is a club of like-minded hams who are interested in VHF/UHF/SHF weak signal communications. Our geographic focus is Wisconsin, however hams in Northern Illinois, Michigan's UP, and Eastern Minnesota are welcome to join us.

The Great Lakes DX / Contest Club - The Great Lakes DX / Contest Club is located in the central part of Michigan near the city of Lansing which is the state capitol. The club's main purpose is to support and encourage the DX aspect of the amateur radio hobby.

50 MHz and Up Group of Northern California - A non-profit public service and educational amateur radio organization specializing in advanced and experimental microwave communications.

Western Amateur Radio Association - The Western Amateur Radio Association, founded in 1978, is a Ham radio club based in Fullerton, California. The club supports and participates in many activities, including Field Day, transmitter hunting, microwave, satellite, and APRS, to name a few.

Blossomland Amateur Radio Association - Located in Southwest Michigan, in Berrien County

The Caltech Radio Frequency and Microwave Group - Develop microwave amplifiers and related products

Unified Microsystems - W9XT contest card DVK Digital Voice Keyer, morse keyers CW memory keyer, beacon CQ IDer, USB interfaces and more for ham radio operators

Trilithic - Broadband instruments, R and microwave components and filters, field analyzers, spectrum analyzers

ICOM 746 Temperature Measurements - The ICOM 746-Pro has acquired a history of NEC 1678G (IC-151) MMIC and driver transistor 2SK2975 failures. The failure of IC-151 appears to be a combination of ESD damage from electrostatic charge on the antenna entering IC-151, and perhaps thermal heat.

FT-1000D mic. modifications - A collection of mods for the yaesu FT-1000D

Yaesu FT-847 (FT 847 FT847) at ham.dzm.ro - Yaesu FT-847 (FT 847 FT847) transceivers mods reviews software manuals and diagrams

Asia Radio Sales - Online shop based in hong kong offer batteries mic speakers adaptors programming cables earpieces telescopic antennas handheld antennas desktop chargers handheld speakers. Kenwood Icom Yaesu and Alinco dealer

Homebrew HF Amp with 3CX3000F7 - Grounded grid triode HF linear amplifier with pictures and schematics diagrams by W2DTC. The amp design was for 160 80 40 and 20 meters

External Keypad for FT-817 - An external keypad for FT-817(ND), for the serious portable/field-day contester/operator. Homebrew it with the free firmware and public circuit diagram. The circuit is very simple and takes power supply from the ACC port of the radio