I needed a GPS antenna for a frequency standard I bought. So I built one.
Category Archives: electronics
Oddments
Spotted in the adverts in this months Radcom.
Geekery.
A few days ago I built a radio receiver out of junk, because my usual radio had died a death and I wanted to listen to a specific part of the shortwave bands around 3.5 – 4 MHz. Last night I scanned up and down the band and located what sounded like a fax transmission, …
Sixty today
On on Dec. 16, 1947 – sixty years ago today – the world’s first transistor was constructed and tested at Bell Labs, New Jersey, USA. Those responsible for the device were William Shockley, the theorist and John Bardeen and Walter Brattain who actually constructed the first one. What started life as a heap of precariously …
High-voltage coincidence
I’m in need of a high-voltage, low current DC power supply temporarily for an experiment in the lab, prices for these from the usual suppliers run into the hundreds of pounds. Given that all (all but the very best ones anyway) they consist of is a string of diodes and capacitors in a Cockcroft-Walton configuration, …