VK5TM


News, Updates and Other Minutiae

As a lot of people have pics of things unrelated to ham radio on their websites, I thought I would add a couple of my own (Scroll down for site updates). Banjo, our Red Heeler/Koolie cross at 4 months old. Banjo at 4 months And at 12 months old (Feb 2016) enjoying his birthday breakfast treat of banana on toast. Banjo at 4 months

May 2017

New project added - my version of the X-Phase noise canceller. PCB available and a kit of parts to follow soon

27 December 2016

Another addition to the Gallery section. This time, fitting a DDS module to a Philips PM5326 RF Generator to cure a bad drift problem.

26 November 2016

Additional software for the Simple DDS VFO added. This enables the pushbutton on the encoder to change step size (step sizes 10kHz, 1kHz and 10Hz). See the notes in the Download section of the Simple DDS VFO page for more info.

20 November 2016

I have had some interesting conversations with homebrewers over the last few years relating to experiments/modifications of the works published on this website. One of the things on the 'list of things to do', was to publish some of their pics' etc on my website, so along that line, the first one, a filter/leveller for DDS modules from G3OAG, is now on my site. This one and all the others I have available to show, will be posted under the 'Gallery' menu. Now that things are starting to return to somewhat normal around here, I will endeavour to get the others up as quickly as possible (with apologies to those that have been waiting to see their work in lights).

FT757 Battery Replacement

Replacing the battery in an FT757 in pictures

While hunting around the internet, I came across a document in French by Denis F4ANN about replacing the battery in an FT757 rig. Yaesu FT757 pic While maybe not homebrew strictly speaking, we are taking something apart, doing some soldering and putting it back together again (OK, technically it is 'repair work'). As I have an FT757 sitting on the shelf awaiting it's turn on the bench, I decided to translate it into English and put it into the 'information depository' for later. I also asked Denis's permission to put it on my website, which he agreed to. Rather than write it up as a web page, it is available to download as a pdf below. I figure others may want to store a copy locally rather than having to keep refering to a website they may forget where they saw it. One thing Denis did, was to replace the original battery:- Original FT757 battery with this type:- Replacement battery He also moved it to a more convenient location, should it ever need replacing again. This information may also be useful to anybody disassembling an FT757 for other repairs. Download the PDF file here: FT757 Battery Replacement