vacuum

Oldradios.co.nz - A new zealand radio servicemans personal tribute to old 'boatanchor' valve communications receivers, dx listening posts of the 1950's, early radio literature, vacuum tube (valves) collection, early tube testers, unusual

Tube Tester Manuals

Michelle Troutman Electronics - Sams Manuals and Manufacturers' Service Manuals Sams from the early 1950s through late 1970s; various service manuals for brand name equipment from the 1950s to 1991. NOS Vacuum Tubes A price list of over 1100 tubes.

Fun With Tubes - A noncommercial site operated by Max Robinson and dedicated to passing on and preserving knowledge of vacuum tube circuits and techniques.

Vacuum Tube (Electronic Valve) Museum - Vacuum tube museum 1910 to 1960 with pictures and notes.

Tubes 201 - How Vacuum Tubes Really Work

The Tube Exchange - Buy, sell, trade vacuum tubes

Pacific T.V. Online Tube Catalog - Vacuum tubes and sockets for radio, audio and amateur use. Over 1500 types, online schematics and technical data

GIGAVAC Ham Radio Relays - Gigavac is a leading designer, manufacturer, and worldwide seller of contactors and high voltage relays using vacuum, gas filled, and high voltage reed relay technology. hv relay applications information with cross reference charts for kilovac / tyco, jennings, and crydom part numbers.

Econco - Leader in providing power vacuum tubes. A subsidiary of CPI

Penta Laboratories - Penta Laboratories is a Manufacturer and Distributor of vacuum tubes, capacitors and electron tubes for Broadcast, Industrial, Marine and Avionics applications worldwide.

Nikola Tesla - Nikola Tesla considered inventor of the radio X-rays the vacuum tube amplifier

Vacuum Tube Supply - Sell New old stock vacuum tubes at discount prices

Radio Tubes, NOS Vacuum Tubes on sale - Old Radio, Ham Radio, NOS Audio, Antique TV Tubes on sale

BEIJING ELJVT - Sell the China made electron tubes over a long period of time, the vacuum tubes/electron valves/Power tubes/Audio Tubes/Thyratrons/Magnetrons and accessories, the tube sockets, the vacuum capacitors, high voltage ceramic capacitors, aluminum electrolytic capacitor.

The Tube Center - Supplying over 2000 different vacuum tube types, valves, grid caps, sockets and capacitors. It is easy for Antique collectors, Ham radio operators, audio enthusiasts, broadcast enthusiasts and amateur radio hobbyists to buy, sell and trade vacuum tubes, electron tubes, audio tubes, valves, grid caps, sockets and capacitors

ABCVacuumTubes.com - ABC Vacuum Tubes is dedicated to providing Ham radio, amateur radio operators, antique radio enthusiasts, audio professionals and hobbyists the ability to choose from an inventory of over 3.5 Million Vacuum Tubes on hand under one roof.

Amplifiers and Vacuum Tubes Tuning Loading and Arcing - Page on amplification topics. From vacuum tubes to various components, discussion on stability and arcin causes.

Duncan's Amp Pages - This is an internet resource for those interested in guitar amplifiers, vacuum tubes, and design tools such as SPICE modelling.

TANKIT Priority listing - A free design aid for vacuum tube linear RF power amplifiers. Determine plate circuit operating parameters and design pi or pi-L tanks quickly and easily.

Vacuum Tube Amps - How the tube converts DC to RF Power

High Voltage Breakdown Tester - K8CU technical topics article about high voltage breakdown tester necessary for testing of any high voltage components like vacuum tubes, high voltage capacitors, vacuum relay

Vacuum tube Basics - Here's a tale of early '70s vacuum tubes, mainly from the viewpoint of amateur radio.

Tube FAQ - The Vacuum Tube FAQ by Henry Pasternack

Vacuum Tube Software - The VTDATA software package is a complete vacuum tube manual on your computer. It has all the information you'd expect in a tube manual. VTDATA's database also includes vacuum tubes of historical interest, such as the early "two digit" types (45, 80, etc.) and hi-fi audio types.