this page
is a page of favourite and usefull links

SPICE with nice GUI, for windoze and Linux (with WINE)

This is the place to get LTspice.  This is genuine freeware, it is like Pspice, has not been crippled, runs  on windows with a very functional and intuitive GUI. Best bit is that is also runs well under WINE for my fellow penguinistas.  I used to use the classical SPICE running on linux,  but it is reasoneably hard to use. It is still the best and fastest, but its clunky interface makes the "let see what happens if we do this" change and test scenario  quite hard.  Linear Technology Corporation gives away  this very functional spice implementation because they want you to evaluate their fine chip level products with their SPICE models with this cooooool program

MORSE CODE training program

I was teaching myself morse code so as to get the full ham radio certification. Then the morse requirement was dropped but not before I got to 5 wpm with the help of this beautiful little MSDOS program. It is very thorough, does random groups, training levels from newbie to advanced and completely configurable.  This also runs well in Linux using either WINECONSOLE or DOSBOX

This jolly site generates random Computer Science academic papers

you too can now become a respected computer science academic with only 7 mouse clicks

Military Wireless Radio Manual site.
The best site, no ifs and no buts!

A dammn fine technology blog

very readable and beautifully presented

The Apollo Moon Mission

Those old enough to remember sitting in front of the old black and white boggle eyed television set in the the sixties looking at grainy blured images of astronauts hopping across the moonscape may appreciate this site. It has archival technical information and reports from the the latter Apollo series. There are gems such as the the Saturn V Rocket Flight Manual, 255 pages of the technical detail that was never included on the back of cornflakes packets. Ever wondered what all those hoses and foofer valves were for ?  I used to wonder at the marvel that Saturn 5 could actually clear the launch tower, let alone make it to the moon. After reading the flight manual it was clear to see that absolutely nothing was left to chance.  I can image people slapping Verner Von Braun on the back exclaiming "it worked"  and von Braun coldly replying " Off Course".

this site rocks big time!

an arbitary transmission line and coupler calculator

This tool when given an arbitary transmission line or coupler as a BMP file will calculate by finite element methods assorted transmission line parameters, most usefully the characteristic impedance

IC and other electronic component  data sheets
the best source of data and specification sheets in the entire internet

NXP corporation, a spinoff of Phillips
many applications notes and product data

a very nice ham radio linking site pointing to lots of very coooool technical and hobbyist sites


a very nice human front end to MININEC
free as in beer!
MMANA is a GUI interface to mininec, the classical and definitive antenna modelling code. Mininec input is very difficult and arcane to program, but this is a human gui front end that permits relatively easy input of antenna geometry specification. It comes with numerous example files.  The GUI was written for Windoze but I have found that it runs perfectly using wine on linux. Mininec dates from mainframe codes written in the sixties, indeed, the native input format is the card deck. Thats why commercial gui  versions were quite successfull.

There are various sites around the planet that host this binary executeable
mine came from here

US Navy   Historical Documents  Site

This site has recently declassified US NAVY manuals for not only some electronic equipments but complete manuals for submarines, WW2 era battleships, PT boats.  There are entire Navy Electronics/Electrical courses.  There are the maintenance manuals for the amazing analog computers that were inside the RANGEKEEPER mechanisms that dynamically solved ballistics equations to aim the huge Naval Guns as mounted on WW2 era battleships.  These must be read to be believed. Compulsory reading for all Armchair Admirals

There is enough scanned material here to keep you engrossed for literally years