tube

Shortened vertical antenna for 7 Mhz - A simple drawing of a shortened antenna for 40 meters by using a PVC tube

Shortened antennas - Drawings of shortened antenna for indoor usage, using short pvc tubes for 2 , 20 and 40 Mhz by f1rfm

Camden Antique Radio Service Priority listing - Expert, affordable antique radio repair, all home and auto vacuum tube radios, located just south of Atlanta Georgia

YouTube : AO-51 Videos - Videos of AO-51 operations. Randy K7AGE has produced a number of practical and useful videos including good info on a minimal antenna setup for AO-51 reception.

TenCom - Tencom, located near Toledo, Ohio is dedicated to the pultrusion of fiberglass composite products. This includes solid rods, conductor rods, tubes and a variety of custom profiles.

Cleveflex - Clevaflex is a manufacturer of flexible wound tubing that can be used in a variety of applications. our unique manufacturing process allows tubes to be designed and built with a multi-ply convoluted wall contour that creates a permanently bonded tube.

Mmicronetics - Electron tubes / valves NOS and new production

Technical books online - Downloadable Amateur Radio Tube related technical books free of charge and ready to download.

ARC Vintage Radio - Here you will find tubes, manuals, radios and other related radio items for sale.

Altana Tubes - Brazilian vacuum tube, capacitors, transformers, plugs and connectors, resistances dealer

Vacuum Tubes, Inc. - Worldwide sellers of vacuum tubes and electron tubes for audio, radio, and industry

TubesWorld - Dealer for valves and semiconductors

Ask Jan First Electron Tubes - German vacuum tubes dealer

Antique electronic supply - Vacuum tubes, accessories and products for antique radio restoration

Tube World - Your one-stop source for high quality new old stock vacuum tubes.

NJ7P Tube Database Search - This database contains data on thousands of tubes

Tube Data Sheet Locator - Resource for finding data on vacuum tubes.

Frank's Electron tube Pages - Tube databases in different languages

Tube Reference - Electronic Vacuum Tube Reference Manual & Specifications from the RCA Receiving Tube Manual.

Vacuum Tubes - This overgrown page covers all kinds of vacuum-tube electron devices, especially receiving tubes.

Military VT Tube Cross Reference - Rod's classic & Antique Radios

Fun With Tubes - Dedicated to passing on and preserving knowledge of vacuum tube circuits and techniques

rec.radio.amateur.boatanchors FAQ - Frequently Asked Questions - about vintage tube-type ham radio and communications equipment

EDUCYPEDIA Tubes datasheets

Blue Glow in Electron tubes