vacuum tube

10m Aluminium Moxon Construction - Building a moxon antenna with aluminium tubes

80/160 Dual band vertical - This 80/160 meter antenna is constructed from six 12 foot aluminum tubes to form a slip-up mast antenna some 60 feet high by K0RWU

VE6YP CoaxTrap - The Coax trap program computes design parameters for the construction of coaxial traps for HF usage. Typically these are constructed from PVC tube and RG58/59 coax

The G4ZU Bird Yagi - Interesting variant on the 3-element Yagi. Lightweight fiberglass (or similar) tubes supporting a wire structure of elements

Tube Tester Manuals

SAJJ.COM - Quality Antique Radios - Quality antique radio sales. antique radios that work. antique tube radios with warranties!!

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.

Sal's Antique Radio's - This site is dedicated to the fixing up and restoring old tube radios.

M.V.S.Z AO Svetlana - Audio hi-end tubes for amplifier

The Tube Exchange - Buy, sell, trade vacuum tubes

The WiWi Tubes Home Page

Micronetics Ltd - Electron tubes/valvs NOS & new production.

The Cathode Ray Tube site - Collecting and history of CRT tubes and physics instruments

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

RadioActivity: Radio Repair - Radioactivity. radio repair, services, and warranty on 1920's - 1960 radios. New and used tubes.

Yaesu FT-847 Video - A yaesu ft-847 on 80 metre band (3 mhz) a video provided at YouTube

Aircraft Spruce and Specialty - Offer Aluminium tubes for antenna parts

Pierce Aluminum - Distributor of aluminum and a manufacturer of finished aluminum products. Pierce Aluminum offers a diverse inventory and distributes a complete line of sheets, coils, plates, bars, structural shapes, tubes, pipes and extrusions in the most varied alloys and sizes possible

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.

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.

Homebrewing a tube-type HF amp. - This article discuss the use and construction of a grounded-grid, triode type HF amplifiers

Ameritron AL-1200 to gs35b Conversion - The Ameritron AL-1200 Amplifier is in current production. In its factory configuration it uses a single 3CX1200A7 (triode) tube, grounded grid configuration. Re-tubing the AL-1200 with a GS-35b with success.

Precision E-200-C Signal Generator - This page lists some vintage test equipment including RF Signal generators, tube tester, cap tester, audio generator

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