Month: July 2011

Curious Cows

I haven’t been able to do any work on the Hen House recently. The grass in our paddocks got up to knee height, so we asked a neighbor if he wanted to put his cows in the paddocks to get

Digging holes for the Hen House

Yesterday I had the fortunate experience of reminding myself why I don’t like digging holes. The Hen House is held off the ground on six 100×100 (4″x4″) treated posts concreted into the ground. The posts are only sunk 600mm (24

La Crosse TX20 Anemometer Communication Protocol

After a LOT of investigation of the La Crosse TX20, I’ve managed to fully decode the complete datagram from the La Crosse TX20 INCLUDING the Checksum. Here’s everything you’ll ever want to know about the pin out and the communications

Disassembling a La Crosse TX20 Wind Anemometer

I’ve been wanting to build a weather station, complete with the Geiger counter I’ve been working on. Building the wind speed and direction sensor seemed like a daunting task, especially since they need to be weather tight, but have moving

More information found on Violet Wand

I’ve managed to find some very useful information on a Violet Ray design through the Google Patents website. The patent number is 1506344. The link to the patent is This patent isn’t for the model I’m trying to repair,

First look at the insides of the Violet Wand

With the lower cover removed, it becomes clear that the internals of this Violet wand are very similar to the Master brand unit. This should make it a lot easier to find problems than blind investigation. The intensity knob is

Disassembling a Violet Wand

The first step to any repair is getting into the guts of the device…. primarily without damaging it. There is very little information on the web about the internals of these devices. It looks very similar to the Violet Wand

Repairing a Violet Wand

I’ve been asked to take a look at a non-functioning Violet Wand in the hope that I can repair it back to working order. These devices have many uses from being used as Quack Medical devices, through to being used