history of radio tubes

Sugar Delta Italia - The Official Sugar Delta Italy website With all the information about the SD group in Italy.

Canadian Amateur Radio Callsign Database - Search engine is provided by Radio Amateurs of Canada.

The Radio Amateur Satellite Corporation - AMSAT NA official web site.

Jefferson County Amateur Radio Club - Jefferson County Amateur Radio Club - Arnold, Mo

10-10 FTP archive - Ham radio related anonymous ftp site by 10-10

UCSD - University if California San Diego Ftp site

Radio Gateway by IKXHT - "The project ""Internet on the Air!"" Radio Gateway project"

Kantronics - Kantronics produce Modems, Tnc, Kam, Marine, wireless modems. Packet radio communication devices, HF E-mail, paging, GPS tracking, weather data gathering, or wireless data transmission.

Yaesu  ^pop - Yaesu official web site

West Devon Repeater Group Web Site - English ham radio group devoted to ATV

Atlanta ATV - ATV ham radio group based in Atlanta USA

NASA Astrobilogy - Lots of cool documentation from the astrobiology NASA division, with references to meteors observations

Deutscher Amateur-Radio-Club e. V. Priority listing - German ATV Club

ON4VT sstv pages - ON4VT SSTV and personal page, includes a large software review, introduction for beginners and webcams showing sstv on the net

HF-FAX - The home of Radio Facsimile wefax & SSTV.

Near-Realtime MUF indicator  ^pop - This is a highly informative map that can be used by amateur and professional radio communicators to determine maximum usable frequencies for any world-wide path at the indicated UTC (Zulu) time.

SHF MICROWAVE PARTS Co. - Microwave parts for ham radio and experimenters.

LZ1JZ QSL Print services - QSL printing service based Bulgaria and managed by LZ1JZ, offer from single color to full color qsl cards.

NA7EM QSL Card design - Offer custom design and printing of extremely high quality, very affordable, QSL Cards.

Antique Electronic Supply - Antique Electronic Supply has a complete line of vacuum tubes. We feature Svetlana vacuum tubes for amateur radio, broadcaasting and audio applications. We have over 700,000 new old stock tubes to choose from. We also have a complete line of transformers, featuring Hammond and One Electron. Capacitors, resistors, parts, books, etc. Most orders shipped within 24 hours. Major credit cards accpeted. E-mail for free catalog!

MEI Software - The file MEI-10.ZIP contains educational software to evaluate antenna arrays of up to 8 elements. Two types of arrays may be studied: 2D planar arrays (Yagi-Uda, Circular, etc., up to 6 elements) and colinear arrays (up to 8 elements.)

Software by Swiss ATV - Small collection by Swiss ATV association

DIGTRX - High definition SSTV software for windows 2000, xp by PY4ZBZ

EZLog - Amateur radio log by WN3WVG

SSTV FAX WX Software  ^pop - A very clomplete ham radio software collection for SSTV, FAX, and WX