As a confessed web junkie (how else can you do a site like this) and a ham…… I find many sites that show circuits from decades gone by that are every bit as relevant today as they were when they were originally created.
Then…… there comes a time when you can look at a mere snippet of someones overall body of work and get an interesting glimpse into one of those rare “beautiful minds”. Such is the case with Sir Douglas Hall.
He started publishing articles nearly two decades after he started tinkering with electronics. This site has copies of his published works from the early forties to…… here’s the crazy thing….. the new millennium!!!
I can’t even begin to go over the normal lists like I do for many articles here, but there are tons of articles from various methods of volume control, multiple crystal receivers, portable radio kits (transmitters and receivers), tons of theory….. the list goes on.
I think I need to cache a copy of this page for my next trip so I have plenty of neat stuff to read while traveling, truly neat stuff.
To find these ingenious circuits, go to:
**** Update ****
Thanx to Geoff for commenting and letting me know that there are not only updates, but MORE great circuits on the radioconstructors site at: