Now I have an xray machine to play with at work, I can take photographs of the insides of things. I shall make full use of this. Here’s an old transistor to start with. Image details : Mullard OC44 PNP Germanium transistor, glass envelope. 90kV polychromatic xrays, filtered with 1.5mm Al and 0.2 mm Cu. …
Category Archives: engineering
GPS
I needed a GPS antenna for a frequency standard I bought. So I built one.
Oddments
Spotted in the adverts in this months Radcom.
LHC
It worked! Clockwise and anti-clockwise beams though the ring with minimal tweeking of the focus and steering parameters. Yay!
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, …