6t9 tube

GM3MXN Magnetic Loop Antenna - This article describes a loop usable from 7 - 21 mHz, using half inch copper tube 3 feet in circumference

Tube Collectors Association - Tubes and antique radio buy and sell classified ads

Radio Boatanchor parts - Knobs, slicers and antique radio parts for heathkit Johnson Kenwood Hallicrafters Hammarlund and many more

Old Radios - Dedicated to the collection and preservation of old radios, both tube and transistor.

BoatAnchor Manual Archive - BAMA - The manuals in this archive are available to all who enjoy working on and restoring old tube type amateur radio equipment and short wave receivers. Hundreds of boatanchor manuals

Antique Radio Schematics - Specializes in antique radio schematics, circuit diagrams and service data for vintage tube radios. Carries information for American, Canadian and European antique radios.

The Boatanchor Classifieds - A free service dedicated to enthusiasts of fine tube gear from Amateur Radio's classic era.

CT Ham radio devices - CT hand keys and paddles. Power tubes, sockets, relays. DX Scack rentals.

Max-Gain Systems, Inc. - Fiberglass for the antenna builder, Antenna Mart quads, Bandmaster quads, transmitting components, vacuum capacitors and relays, tower accessories, gin poles, remote RF coax switches, rotating side mounts, quad spreaders, quad parts, bristol wrenches, doorknob capacitors, transmitting electron tubes, and much more!

HD Communications - Rf Connectors,RF Amplifiers,RF Filters,HF cable and accesories. Tower hardware valves and tubes

Electron Tubes and Vacuum Tubes - Worldwide distributor of electron tubes and related items. Large stocking facility means fast deliveries for your hard to find tubes.

Valve radios - Viking SW design and produce valve (tube) receivers for the ham and SWL.

International Components - International Components Corporation has an extensive range of electronic components consisting of audible signal devices, speakers, microphones, capacitors, electron tubes, connectors, and accessories designed in recognition of the diversity of applications and special characteristics encountered by designers in today's complex world.

Engineered Composites Ltd - Fibreglass tubes, structural profiles and other composite materials all available from stock

Electron Tubes - Electron tubes and vacuum tubes for industry

Ameritron  ^pop - Manufacturer of amplifiers, antenna switches antenna Tuners, wattmeters and relay buffers, amplifier accessories, antennas and tubes and parts

Heathkit SB-220 and SB-221 essential mod - Modifications to avoid damage when 3-500Z tubes fail.

Ten-Tec Jupiter CW copying and keyboard transmit - Part 2 - Ten-Tec Jupiter CW copying and keyboard transmit

RF Parts - Antennas, books, rf parts, tubes,connectors and cables and many accessories at RF parts.

Radiodan - W7RF - BIRD RF power measuring, new and used, HENRY RF power amplifiers (used HF amps), TOHTSU coaxial relays, SAMLEX power supplies, RFI chokes reduce interference, Parts parts, tubes, Used amplifiers, radios, antennas and accessories, Los Angeles, CA.

ESRC Vacuum Tubes - Sales and Purchases - With over 400,00 vacuum tubes in stock, ESRC is a major supplier of tubes for commercial and hobbyist purposes

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!

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.

130 Watt Dummy Load - Video, how to build a 130 Watt Dummy Load for HF amateur radio