microphone pre amp

The Radio History Society - A Washington DC-based non-profit organization dedicated to the preservation of radio and television history. We operate a museum in Bowie, MD

FIR CB - Italian CB federation, representing italian CB users

30 RMA 002 Jose - Personal page of 30 rma 002 jose,president of RMA DX Group

Sommerkamp users page - Info-page for Sommerkamp radio's by DO-X germany

Low Land DX-pedition Team - Contains stories, pictures, audio files of all previous expeditions and current ones.

Crystal Radio Resources Priority listing - Comprehensive site for crystal radios. Info on the third annual xtal set bcb dx listening contest.

ARI Torino, Sala Radio Priority listing - "Sezione A.R.I. di Torino presents ""Sala Radio"" dedicated to Duilio Secoli I1TMD"

Great Yarmouth Radio Club - Promoting Amateur and CB Radio. Uk repeaters, World Prefix list, UK & U.S bandplans, HF World-wide beacons, Free Ad's, Web site awards

IZ8DWG Onofrio - Includes Amplifier, antenna tuner, quad, yagi, rotators project in italian

VK2FLR DX Sounds Archive - Real Audio files containing interesting examples of VHF DX propagation from Sydney, Australia

E. H. Armstrong - Radio's premier inventor, Edwin H. Armstrong was responsible for the Regenerative Circuit (1912), the Superheterodyne Circuit (1918), the Superregenerative Circuit (1922) and the complete FM System (1933)

Radio History - Here you can find examples of old-time radio during its developmental period. The material consists of first-hand memories, gleanings from radio archives and other sources

Ham Radio & DSP - Related histories, facts and opinions by EA2BAJ, includes example of PSK MT63 QPSK audio files in wav file

RTTY.com - RTTY.COM has been established to focus on the many aspects of Amateur Radio Teletype (RTTY) and to present to the dedicated RTTYer, and to the curious, a location wherein one can find information relating to RTTY and BAUDOT communications.

H.F. F-Layer Propagation Predictions Priority listing - Assembled from a prediction model written by VE5ZX/G0TZX, from parameters supplied by G4FKH

Yaesu FT1000MP Page - Website devoted entirely to the Yaesu FT1000MP. Our purpose is to link you with other owners and to enhance the understanding and appreciation for just what the radio can do, and how you can use other hardware and software with it.

Express Electronics Inc. - CB Radios and Export Radio Equipment

Pori Short Wave Base - Website of YLE Radio Finland Pori short wave Base: photos, backgrounds to Your PC monitor and more, in finnish

Electronic DX Press - Founded in 1995, a Club with a worldwide membership, administered from Australia. Shortwave, digital broadcasting, Australian medium-wave and FM, equipment. E-mailed "World Broadcasting Magazine", messaging forums, regular radio programs, extensive resource library.

Antenna Solver - provides much greater flexibility in the construction, analysis, and interpretation of radiating structures using a rewritten NEC module.

Finite difference program - This software is able to calculate the properties of odd shaped transmission lines. Particularly good in valve amplifier design, for aiding the design of transmission line resonators.

W6ELProp - Predicts ionospheric (sky-wave) propagation between any two locations on the earth on frequencies between 3 and 30 MHz

Commander  ^{updated  pop} - A free application that controls up to 4 Alinco, Elecraft, FlexRadio, Icom, JST, Kachina, Kenwood, TenTec, or Yaesu transceivers, switching between them manually or automatically based on frequency, and displaying frequency-dependent settings for devices like tuners and amplifiers; includes a bandspread, and supports transverters, frequency and mode tracking by an independent transceiver or receiver, SDR-based panadaptors, and SO2R switching with microHam or OTRSP-compliant devices.

WB0NNI Home Brew HF Amps and Tutorials  ^pop Priority listing - Tutorials and other information on designing and building hf amplifiers. Includes tube data and amplifier projects.

Push pull 2m amplifier - This shows an unsuccesful attempt to build a push pull 2 m amplifier, with the tubes in grounded screen.