valve grid protection

Valve Data Sheets - This web page has full data sheets for a number of commonly used valves. Most are Eimac and include the 2C39A, 3-500Z, 3-1000Z, 3CX1500A7, 3CPX5000A7, 3CX5000A7, YC156, 3CX15000B7, 4CX250B, 4CX250A, 4CX1000A, 4CX1500B, 4CX10000J etc. These are not avialable on Eimac's web site in full - only brief notes.

GenLog - Freeware Win98/NT/XP contest logging program, supports over 270 contests, Grid Square distance/heading routines, plus Grid maps by Dave Mascaro W3KM

C6AMS Bahamas DX Pedition 2010 - Online log and live audio from NA6M/C6AMS, N5BW/C6AMR, K2CK/C6ASH, K5AB/C6AAB and W5ETY/C6ATY will be active from Eleuthera Island, Bahamas (IOTA NA-001)(Grid FL15)9 July to 25 July 2010. Operating on 160-6m CW, SSB and Digital Modes

AMT.ORG - W6AMT and W6EME, Meteor Scatter,Grid square maps!, online clock tune-up, or, useful and tested downloads

HD Communications - Rf Connectors,RF Amplifiers,RF Filters,HF cable and accesories. Tower hardware valves and tubes

Harger Lightning Protection, Inc. - Harger Lightning Protection is a full line supplier of lightning protection and grounding equipment, servicing the lightning protection, communications and electrical industries.

Valve radios - Viking SW design and produce valve (tube) receivers for the ham and SWL.

Grid Locator and Grid Square - About grid locators and grid squares, includes links to locator and grid square calculators

Maidenhead Locator Calculator - On-line calculator for Maidenhead locator calculations. It will work out your Maidenhead locator if you supply it with map references or calculate map references from your locator code.

JF9EXF Ham Maps Priority listing - Interactive maps for WAC continents, CQ zones, ITU zones & regions, Grid squares, Beam map & Japan districts

Grid Square maps  ^{updated  pop} - Several grid square maps on the net, including world maps, regional maps and specific country grid square maps, collected by ve2pij

Grid Square maps  ^pop - Maps donated by Jack Bruce WA5UUD

Electriduct - Cable protection products - Offers cable protectors, cord covers, cable guards, management products, solutions and supplies. Protect your cable, wires, and hoses from foot, small carts, and vehicular traffic with the trusted Linebacker Series of Cord Covers.

Finite difference program - This software is able to calculate the properties of odd shaped transmission lines. Particularly good in valve amplifier design, for aiding the design of transmission line resonators.

DX Monitor - DX Monitor is a standalone Win 95/98/NT program which monitors the DX announcements available on the internet at DX Summit and presents the information in a sortable grid format and on a map centered on your location.

Grid Loc - calculate maidenhead grid square and coordinates

GridX - GRIDX, a BASIC program that calculates grid squares and Great Circle headings and grid.exe, a grid locator calculator

Squares - Grid Square and Distance calculator by w3km

HamGrids - Windows application that will allow you to perform calculations with the popular Maidenhead Grid Square system. This grid system is used worldwide by amateur radio operators for many aspects of ham radio.

WinGrid - Calculates grid squares from latitudes and longitudes, the reverse, and calculates distances and headings from two sets of lat/long or grid square. Convert Grid Square to Lat Log and vice versa. Freeware for Windows

Qgrid - Maidenhead grid squares calculator, and bearing and distance program

iDXSpot - DX Spots announced by speech in phonetics (or plain). Connect to the worldwide DX-Cluster via the Internet easily. Calculates distance and bearing between Grid locators and sends Grid & distance. Hot buttons to see DX-Spots on specific bands. Editable Hot buttons. Easy switching between favourite DX-Clusters.

Eurowinlog - Eurowinlog is a ham logging software using worldmap zoomable capabilities. Handling 32400 gridsquares, dxcc, dxcluster, qsl printing and much more.

VHF Logging program - This program checks for duplicates (including partials), lists multiplier grids by band, lists all contacts, writes the Cabrillo file format for log submission, and provides many current statistics by N3FJP

MacGPS Pro - Mapping software which links a Garmin GPS receiver to your Macintosh. Includes Maidenhead grid squares and beam-pointing maps.