trio hf5

VHF 5/8wave vertical antennas - By Guy, de ON6MU, At VHF, both the 1/4-wavelength monopole and the 5/8-wavelength monopole antennas are widely used.

VK0LD Macquarie Heard and McDonald Islands - VP8PJ Patriot Hills Base 2004/2005

Patriot Hills Antarctica - K2ARB - Adam Brown's Blog from Latitude 80.19 South Longitude 81.16 West

New England DX Century Club - Patriot DX association

Discovery Power Amplifiers  ^updated - The Discovery series of amplifiers are designed and built in the UK by Linear Amp UK Ltd, one of the world’s leading amplifier manufacturers, specializing in high power RF tube amplifiers. The amplifiers use large GS31 or GS35 ceramic triode tubes. Band coverage 6m, 2m and 70 cms

Kenwood/Trio - TS-50S - RigPix Database: Kenwood TS-50, pic and specifications, link to user manual

RigPix - Kenwood/Trio - TS-570S - Pics and specifications

Kenwood/Trio - TS-850S - RigPix Database picture of the TS-850

TS-940S Picture and data - RigPix page about the Trio Kenwood TS-940S HF Transceiver

Electron Tubes and Vacuum Tubes for Industry - Electron tube and vacuum tube stock-list with prices 4. Audio, broadcast and industrial tubes, triodes, tetrodes, thyratrons, ignitrons, vidicons and CRT's, microwave devices, nixies and receiving types + Bird RF devices and test equipment. Quality tubes at reasonable prices with many hard to find items available

Signals - Trio Datacom, Dolectek and Yaesu Vertex Standard cb and ham radio dealer in new zealand

Patriotic Union of Kurdistan

Junta Patriotica Cubana

GI-7 B/GI-70 BT - The GI-7B (GI-70B) microwave triode

YC156 Conversion - RF Amplifier project modified the original chassis to use a 4CX1000A instead of a YC156 triode

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

Homebrew HF Amp with 3CX3000F7 - Grounded grid triode HF linear amplifier with pictures and schematics diagrams by W2DTC. The amp design was for 160 80 40 and 20 meters

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.

W2DTC Homebew RF Amplifier - Grounded grid, Cathode driven, 3CX3000F7 Triodes

Grounded Grid Amplifier - Picture of a power amplifier, made using of GI-7B triodes by Bob Briggs, VK3ZL

50 MHz GS35b Power Amplifier - OZ1DPR six meter power amplifier using the russian VHF triode GS35b

144 MHz Power amplifier with 2XGS35 B - A VHF power amplifier with a triode 2XGS35 B by FF66JMT, in french

400 W RF Power amplifier for 144 MHz - G4DCV's 144MHz amplifier with a pair of GI-7b Russian triodes

The Kenwood TS-830 Survival Guide - A downloadable manual-like guide containing a lot of technical information about the Trio/Kenwood HF transceiver TS-830.

Kenwood varaible power adjustment - Kenwood / Trio transceivers varaible power adjustment by G4VPM