HEATKEYS

Penta Laboratories is a Manufacturer and Distributor of electron tubes, including vacuum tubes, capacitors, magnetrons and CRT for Broadcast, Industrial, Medical, Audio, Marine and Avionics applications worldwide.

Buy and sell electronics, cars, clothing, apparel, collectibles, sporting goods, digital cameras, and everything else on eBay, the world

Microphone database and search engine, and recording blog with studio tours, engineer interviews, and gear shootouts

YouTube is a place to discover, watch, upload and share videos.

Data on valves or tubes from Amperex, Burle, Eimac, GEC, Philips, Penta, RCA, and Svetlana

DX Zone directory with 15000 Amateur Radio links, about Ham-Radio radio scanning, cb radio and shortwave listening, antenna homebrew projects and a complete radio software collection. Include a free classified ads, ham radio reviews and operators di...

- eHam.net is a Web site dedicated to ham radio (amateur radio).

A leading manufacturer of RF Peak and Average power meters, PIM Testers, RF Voltmeters, and Impedance meters that enable our customers to design and manufacture advanced RF and Microwave systems.

Contesting Online - Amateur radio (ham radio) contesting community web site featuring contesting news, articles, forums, links, and surveys

Online shopping from the earth's biggest selection of books, magazines, music, DVDs, videos, electronics, computers, software, apparel & accessories, shoes, jewelry, tools & hardware, housewares, furniture, sporting goods, beauty & person...