vacuum tube

Antenna DIY Videos - DIY antennas videos chosen for content and quality.

Assembling a Spider Beam - Spider Beam antenna pictures in a youtube video

YouTube - jpole homebrew - jpole 2mtr 70cms homebrew antenna

KGD - Reduced size antenna - A reduced size antenna made of two series resonant circuits with a radiant tube condenser in German

4 element LFA Yagi for 28MHz Priority listing - The lastest PSO (Particle Swarm Optimisation) techniques where used to produce this fantastic 10m antenna. Excellent performance from a short boom. USA/UK and European tube sizes.

TubeRadioDoc Priority listing - Vintage Tube Radio's from Germany for sale. High class restorations for all valve radios offered. Radio Brands like Saba, NordMende, Majestic, Grundig, Zenith, Philco and more. TubeRadioDoc Vintage Audio Store

Antique Radio Schematics - Antique Radio Schematics and Service Manuals for Tube Radios

Ameritron Al-811H demo by K1OIK - Demonstrating tuning and operation of the ameritron al-811h in this Youtube video

Ameritron AL-811H by EA2ID - Ea2id demonstration video of the Ameritron AL-811H in spanish

Ameritron AL-811H Tuning - Ameritron Al-811H Tuning for Power/Dissipation/Linearity, and More Generally 811A Tube Amps in Grounded Grid

Ameritron AL-811H tube selection - This article examines the performance of the Ameritron AL-811H amplifier with the supplied 811A tubes and with 572B tubes, and details a procedure for replacement of existing tubes.

AL-811H inside - Ameritron AL-811H Amplifier inside 800 Watt PA modified with 4x 572b tubes

Nuxcom.de - Antenna parts for self construction, especially for VHF and UHF Yagis designed by Martin Steyer, DK7ZB, coax cables, connectors, aluminium tubes-

Sovtube.com - Russian Radio components - Russian Tubes, Capacitors , Resistors , Ferrites Sockets and other components

Globex - Dealer for Russian Tubes, components and other semiconductors

Halfin - Product specialist for semiconductors and electron tubes based in Belgium

Ciel electronique - Online shop for obsolete electronic components, tubes and semi-conductors

Antique Radio Tubes - We sell antique radio tubes and antique tube radios We have over a thousand different radio tubes in stock. We also have a large stock of globe tubes.

Antique Radio Tubes - Antique Radio Tubes Sell antique radio tubes, over a thousand different radio tubes in stock

Tubeworld - Source for high quality new old stock vacuum tubes

HF Power Amplifier by CT1FMS - An RF power Amplifier for HF bands with 3 GI-7B tubes by CT1FMS

Dentron MLA-2500 Retrofit to the GI-7B - How retrofit the MLA-2500 with the Russian GI-7B tube to replace the 8875's which are both expensive and hard to come by tubes by W4EMF

Navigate FlexRadio Pan Adapter - How to navigate FlexRadio PowerSDRs Pan Adapter

23cm GI-7B(T) PA - Tubes used to achieve about 500W on 23 cm band

About vacuum power tubes - KK5DR on RF power tubes