Radio, Electronics and Computing Projects by Hans Summers
I am not a professional electronics engineer, nor do I have an electronics degree. I make no claims for technical accuracy, good design, or necessarily even originality for the contents of these pages. Rather, I am a simple enthusiast attempting to convey my love and enjoyment of radio, electronics, laptops and computing and perhaps to inspire YOU to build something too. The following pages document projects that I have built over a period of 30 years. Wherever applicable I have named sources and references. In each project I have attempted to provide as much information as time and resources allow, but no responsibility can be accepted for inaccuracies or omissions. Likewise, where some of the projects use mains or high voltages, no responsibility can be accepted for death or injury sustained if you attempt to replicate these projects. BE CAREFUL! If you have any comments or suggestions, please email me. Due to the popularity of these pages and the increasing expense of web hosting and bandwidth, it has been necessary to include advertising on some pages to cover my costs.
Website uprade!
Written by Hans Summers
Friday, 12 June 2009 18:08
The site is now being upgraded to a Content Management System. I am migrating each of the pages over to the new system but due to the large number of pages on my site, this is taking some time. While this is underway, some of the menu links will take you to the old style pages. Some things may not quite work correctly. Please bear with me while these changes are made. The end result should be a more modern looking website design but more importantly, allow me to make updates faster and more easily. Faster updates = more content!
30m QRSS Kit
Written by Hans Summers
Sunday, 23 May 2010 14:09
This 30m QRSS Transmitter Kit was produced by Steve G0XAR and Hans G0UPL. We produced 100 kits and they were sold out very quickly at Dayton FDIM 2010 following my FDIM presentation on QRSS on Thursday 13-May-10. Now available again:
KIT STATUS: 30m: SOLD OUT (more components on order) 40m and 80m: Small quantities remain The price is: 10 GBP + shipping. This is approximately 12 EUR or 15 USD.
Right back to the days of the first Baird mechanical televisions in the 20's, the Narrow Bandwidth Television Association is keeping the memories alive and keeping enthusiasts entertained with a fine mix of mechanical and electronic experimenting. Also please visit the NBTV forum.
This page documents the beginnings of my work on a transmitter I'm going to name "Hellraiser". Ultimate idea: Feld-Hell on 20m. The valve is a massive TB4/1500 and I'm using a microwave oven transformer as a filament power supply.
