9863 vacuum tube

8el 144MHz Super Low Noise OWA Yagi Priority listing - This is a super stable 50OHm direct feed Yagi for 2m using 1/2 inch tube and a real easy build.

20 elements 432MHz LFA Yagi Priority listing - A0 element super low-noise simple to build Yagi for 70cms. Uses 1/4 inch and 12 inch tube/rod

Glowbugs Times - Homebrew Tube Projects, Vacuum Tube Data, Articles From Old Handbooks

K2NCC's YouTube Channel - Video samples of amateur radio, military, government, domestic and international data transmissions. Covering such digital modes as ACARS, CHIP, DOMINO, JT65, MT63, NAVTEX, and many more by K2NCC Frank

How To Make A VO-52 SAT QSO Video - Using a home made 10 element 435 & IO Loop for 145MHz, with a Yaesu FT-847. Simon - 2E0HTS, adjusts his (uplink) transmitted signal to correct the doppler of the Received (downlink) frequency.

I0JXX Ham Radio Parts  ^updated - VHF UHF Amateur radio antenna and antenna parts, accessories for homebrewers, antenna kits, tubes, antenna masts, antenna tripores, insulators, power amplifier mosfet, power splitters by I0JXX

Vacuumschmelze - Manufactures inductive components for telecommunications and power electronics applications.

IC-9100 videos - Icom IC-9100 on youtube

YouTube- Temporary Cushcraft R5 Installation - Temporary hf vertical installation for testing

Homebrew solar panel - Homebrew Solar Panel 60Watts. Building a homemade solar panel from solar cells that would have otherwise been thrown out.

Plate choke design - The plate choke, as used in an HF tube type amplifier in this article.

Tube-type amplifier FAQs. - This page should help the less experienced users solve common problems and questions about HF tube-type amplifiers by Matt Erickson KK5DR

What makes a Good tube-type HF amplifier? - This article is written for the ham who is about to purchase their first HF amplifier or wants to buy an elite class of amplifier that could last the rest of their ham career.

Tuning up a tube-type amplifier properly - This guide is primarily written for those who are new to HF tube-type amps, or anyone who wishes to get the most out a Linear amplifier.

GU-43b Tetrode - The GU-43B tetrode is used for wideband power amplification at frequencies up to 100 MHz in RF equipment. This tube is generally considered analogous to the 4CX1000.

2 x 4-400A Amplifier Deck - A Class C Amplifier rebuilt with 4-400A tubes by W7IUV

The G2DAF Linear Amplifier - Scans of original G2DAF articles on his HF linear amplifier using QY3-125 tube

HF power amplifier using GI7B - Gi7b is tube designed for microwaves but working good as HF amplifier. Idea is to build cheap, reliable HF amplifier covering 160 meters band.

500w 4X150A/7034 TubeVHF amplifier - 500w 4x150a/7034 tube 26-30mhz vhf output amplifier

GS-35B 6 meter amplifier - VHF power amplifier for 50MHz using GS-35B tubes, output 1500 W with 75 W input

6L6 Transmitter - 40 meters band 5 watts transmitter, uses a 6L6 with a 6X5 rectifier and a 0D3 voltage regulator tube on the screen.

Vacuum tube regenerative receiver - How to build your first vacuum tube regenerative receiver

Regenerodyne Receiver - A three tube regenerodyne receiver by Gary Johanson, WD4NKA

A 2 tube regenerative receiver - A low voltage 2 tube regenerative receiver

Electron Tubes & Valves Data - KyteLabs InfoBase - Electron Tubes & Valves Data